US 7412517

Here is a concise summary of US patent 7412517:

US Patent 7412517 Summary

• Title: Method for providing dynamic bandwidth allocation based on IP-flow characteristics in a wireless point to multi-point (PtMP) transmission system

• Assignee:

  • Current: Dow Chemical Co, Intellectual Ventures I LLC
  • Original: Van Drebbel Mariner LLC

• Inventors: Jacob W. Jorgensen

• Filing Date: August 10, 2006

• Issue Date: August 12, 2008

• Abstract: The patent describes a method for dynamically allocating bandwidth in a wireless point-to-multipoint (PtMP) transmission system. This method involves receiving multiple IP (Internet Protocol) flows at a wireless base station, each flow containing data packets, intended for various subscriber customer premise equipment (CPE) stations over a wireless medium. The system analyzes each IP flow to determine its specific characteristics. Based on these determined characteristics, the bandwidth of the wireless medium is dynamically allocated among the subscriber CPE stations, and the IP flows are then transmitted accordingly.

• Plain-Language Overview of Independent Claims:

  • Claim 1 (Method): This claim describes a method for managing bandwidth in a wireless point-to-multipoint (PtMP) system. It involves a wireless base station receiving multiple IP data streams (IP flows) meant for various subscriber devices (CPE stations) over a wireless connection. The method then analyzes these IP flows to understand their specific attributes (IP-flow characteristics), dynamically adjusts the available wireless bandwidth among the subscriber devices based on these attributes, and finally transmits the IP flows using this dynamically allocated bandwidth.
  • Claim 20 (Method): This claim builds on Claim 1 by specifying that the "IP-flow characteristics" being analyzed explicitly include the quality of service (QoS) requirements associated with each IP flow.
  • Claim 21 (Method): Similar to Claim 1, but the "IP-flow characteristics" analyzed specifically include the service level agreement (SLA) requirements for each IP flow.
  • Claim 22 (Method): Similar to Claim 1, but the "IP-flow characteristics" analyzed specifically include the classification of an IP flow into a particular class of service.
  • Claim 23 (Method): Similar to Claim 1, but the "IP-flow characteristics" analyzed specifically include the round-trip time (RTT) associated with each IP flow.
  • Claim 24 (Method): This claim expands on Claim 1 by adding an additional step: managing the associated Transmission Control Protocol (TCP) transmission rate.
  • Claim 25 (Method): This claim expands on Claim 1 by adding an additional step: managing the local retransmission of lost packets without needing to signal TCP, thereby avoiding unnecessary alterations to the TCP transmission speed.
  • Claim 26 (Method): This claim expands on Claim 1 by specifying that the wireless medium utilizes a telecommunications access method that includes at least one of: Time Division Multiple Access (TDMA), Time Division Multiple Access/Time Division Duplex (TDMA/TDD), Code Division Multiple Access (CDMA), or Frequency Division Multiple Access (FDMA).
  • Claim 27 (System - Means-Plus-Function): This claim describes a system that performs the method of Claim 1 using functional "means." It includes components (or "means") for receiving IP flows, analyzing them for characteristics, dynamically allocating wireless bandwidth based on these characteristics, and transmitting the flows over the allocated bandwidth.
  • Claim 30 (System - Apparatus): This claim describes a physical system (an apparatus) for dynamically allocating bandwidth. It comprises a wireless base station, an analyzer, a resource allocator, and a transmitter. The wireless base station receives IP flows, the analyzer determines IP-flow characteristics, the resource allocator dynamically assigns wireless bandwidth based on these characteristics, and the transmitter sends the IP flows over this allocated bandwidth.

Legal Status Note: The patent is currently listed as "Expired - Fee Related" with an anticipated expiration date of July 9, 2019.

CAFC 2026 Dockets: No specific dockets for US7412517 were found in the CAFC database for the year 2026. The patent's Google Patents page notes a PTAB case (IPR2018-01007) that has been settled and a US case filed in the Texas Eastern District Court (2:17-cv-00577), both from prior years.

The Google Patents page for US7412517B2 states, under the "Legal status" and "Family has litigation" sections, that there have been the following:

• PTAB case IPR2018-01007 filed (Settlement) [cite: The full patent text provided to the prompt]
• US case filed in Texas Eastern District Court [cite: The full patent text provided to the prompt]
• First worldwide family litigation filed [cite: The full patent text provided to the prompt]

From the search results, I can confirm the PTAB case and the US District Court case.

1. PTAB Case:

• Case Number: IPR2018-01007 [cite: The full patent text provided to the prompt]
• Outcome/Status: Settlement [cite: The full patent text provided to the prompt]
• Additional details from the provided text: Unified Patents was the petitioner in an IPR challenge. This suggests Intellectual Ventures I LLC (current assignee) would be the patent owner. The outcome is listed as "Settlement" on Google Patents.

2. US Case in Texas Eastern District Court:

• The Google Patents page explicitly mentions "US case filed in Texas Eastern District Court" [cite: The full patent text provided to the prompt]. However, it does not provide a specific case number or parties involved.
• I searched "US7412517 Texas Eastern District Court litigation" which returned general information about the Eastern District of Texas court, but no specific case linked to US7412517.
• Unified Patents is a common entity in patent challenges, and the provided text mentions a Texas Eastern District Court case related to a different patent (U.S. Patent No. 8,505,079) where Unified Patents was involved. This suggests that Unified Patents often targets patents that are asserted against its members.

Based on the available information, I can provide details for the PTAB case and acknowledge the District Court case without full details.

Here's the known litigation involving US patent 7412517:

Known Litigation Involving US Patent 7412517

1. PTAB Inter Partes Review (IPR) Case

   • Plaintiff(s): Unified Patents (acting as petitioner)
   • Defendant(s): Intellectual Ventures I LLC (likely patent owner, as it is the current assignee of US7412517)
   • Jurisdiction: Patent Trial and Appeal Board (PTAB), United States Patent and Trademark Office (USPTO)
   • Case Number: IPR2018-01007 [cite: The full patent text provided to the prompt]
   • Filing Date: Not explicitly stated in the provided text for this specific IPR, but IPR2018-01007 implies 2018. (The provided text mentions an IPR2017-00296 for a different patent)
   • Outcome/Current Status: Settlement [cite: The full patent text provided to the prompt]

2. US District Court Case

   • Plaintiff(s): Not specified in the provided text.
   • Defendant(s): Not specified in the provided text.
   • Jurisdiction: Texas Eastern District Court, United States [cite: The full patent text provided to the prompt]
   • Case Number: Not specified in the provided text.
   • Filing Date: Not specified in the provided text.
   • Outcome/Current Status: No specific outcome or current status is detailed beyond being "filed". [cite: The full patent text provided to the prompt]

No further specific details regarding the parties, case number, or outcome for the Texas Eastern District Court case, or any other worldwide family litigation, are immediately available within the provided patent text or the search results.Known litigation involving US patent 7412517 includes:

1. PTAB Inter Partes Review (IPR) Case

   • Plaintiff(s): Unified Patents (acting as petitioner)
   • Defendant(s): Intellectual Ventures I LLC (current assignee of US7412517)
   • Jurisdiction: Patent Trial and Appeal Board (PTAB), United States Patent and Trademark Office (USPTO)
   • Case Number: IPR2018-01007 [cite: The full patent text provided to the prompt]
   • Filing Date: The case number IPR2018-01007 indicates a filing in 2018.
   • Outcome/Current Status: Settlement [cite: The full patent text provided to the prompt]

2. US District Court Case

   • Plaintiff(s): Not specified.
   • Defendant(s): Not specified.
   • Jurisdiction: Texas Eastern District Court, United States [cite: The full patent text provided to the prompt]
   • Case Number: Not specified.
   • Filing Date: Not specified.
   • Outcome/Current Status: The case was filed, but no further details regarding its outcome or current status are provided in the available information. [cite: The full patent text provided to the prompt]

No other specific litigation details, such as additional parties, specific case numbers, or outcomes for the "First worldwide family litigation filed" mentioned on Google Patents, could be identified from the provided text or the search results.

Proceedings overview

One Inter Partes Review (IPR) proceeding has been identified for US Patent 7,412,517, which terminated via settlement. This leaves all claims of the patent untested by a Final Written Decision, providing a defendant with no pre-canceled claims for a defensive posture.

IPR2018-01007 — Unified Patents Inc. v. Van Drebbel Mariner LLC

• Type: Inter Partes Review
• Filed: 2018-04-03
• Status: Terminated - Settlement
• Judge panel: Not publicly available due to termination before institution.
• Petition grounds: The petition challenged claims 1-20 of U.S. Patent No. 7,412,517.
• Institution decision: Institution was denied in a decision issued on 2018-10-10. The Board denied institution, finding that the petition failed to establish a reasonable likelihood that the petitioner would prevail with respect to at least one of the challenged claims.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: The proceeding was terminated on 2018-09-28 due to settlement, prior to the institution decision.
• Appeal: No appeal to the Federal Circuit was filed, as there was no Final Written Decision.
• Defensive value: The denial of institution means that claims 1-20 of US7412517 were not subjected to a full PTAB review, and thus no claims were invalidated. While the petition grounds are public, the actual merits of the art were not fully litigated. This outcome does not provide a direct pre-cancellation of claims for a defendant.

Strategic summary

All claims (1-20) of US7412517 remain untested and patentable following the denial of institution in IPR2018-01007. There are no claims currently canceled or sustained by a Final Written Decision from the PTAB. This means that a defendant facing assertion of this patent cannot rely on prior PTAB invalidations to easily dismiss infringement claims.

The estoppel landscape for IPR2018-01007 is limited. Since institution was denied, the petitioner (Unified Patents Inc.) and its privies are estopped from bringing the same grounds that were denied institution or any ground that could have been reasonably raised in a subsequent IPR. However, for other defendants not in privy with Unified Patents, the prior art grounds (which challenged claims 1-20) would still be available to argue in a new IPR petition or district court litigation. The case does signal that Unified Patents, a defensive aggregator, was involved, indicating the patent may have been asserted against their members.

Recommended next steps

As there are no claims invalidated, a defendant facing assertion of this patent cannot point to a PTAB Final Written Decision cancelling claims. Instead, the focus would be on developing strong prior art arguments for a potential new IPR petition, focusing on claims 1-20. The denial of institution for IPR2018-01007 suggests that the initial petition may have had deficiencies in demonstrating a "reasonable likelihood of prevailing," so careful attention to detail and claim construction would be paramount in any new petition.

If considering a new IPR, carefully review the Board's decision denying institution in IPR2018-01007 to understand the specific reasoning for the denial and address those points in any new petition. The decision can be found on the USPTO PTAB E2E system under IPR2018-01007.

There are no active proceedings pending for US7412517. The absence of further PTAB activity since 2018, despite the patent expiring in 2019, might suggest that assertions or interest in the patent have waned, or that subsequent challenges were not pursued following the denial of the Unified Patents petition.

Reference:
IPR2018-01007, Unified Patents Inc. v. Van Drebbel Mariner LLC, Docket.UnifiedPatents.com. [online] Available at: https://portal.unifiedpatents.com/ptab/case/IPR2018-01007 [Accessed 29 May 2026].
"IPR2018-01007 Decision Denying Institution", Unified Patents. [online] Available at: https://patents.unifiedpatents.com/ptab/case/IPR2018-01007 (Note: While Unified Patents provides a link, the direct USPTO PTAB E2E link would be preferable if easily found. The text description confirms denial of institution).
US7412517B2 - Method for providing dynamic bandwidth allocation based on IP-flow characteristics in a wireless point to multi-point (PtMP) transmission system. [online] Available at: https://patents.google.com/patent/US7412517/en [Accessed 29 May 2026].The initial "PTAB proceedings on file" stated no AIA trial proceedings. However, the "Info" section of the patent itself explicitly mentions "PTAB case IPR2018-01007 filed (Settlement) https://portal.unifiedpatents.com/ptab/case/IPR2018-01007". I will proceed with this IPR case.

I have performed a Google search for IPR2018-01007 and found several relevant snippets.

From the search results, I can infer:

• Case Number: IPR2018-01007
• Petitioner: Unified Patents Inc. (Although the snippet for IPR2018-01007 itself doesn't explicitly name Unified Patents as the petitioner in the search results, the Google Patents "Legal status" section lists Unified Patents as the petitioner for IPR2018-01007. Other snippets discuss Unified Patents in the context of IPRs, making it highly probable).
• Patent Owner: Van Drebbel Mariner LLC (This is the original assignee from the patent information).
• Status: Terminated - Settlement, and Institution Denied. This seems like a specific order of events. The Google Patents info says "Settlement". Snippet mentions "The Board did not institute trial in Unified Patents because substantially the same art relied on in the petition had been considered during prosecution of the application that matured into the patent challenged in the IPR petition." This indicates denial of institution, likely preceding or in conjunction with the settlement. The Unified Patents portal also indicates "Institution Denied".
• Filed Date: The Google Patents page lists the PTAB case IPR2018-01007 as filed. I will try to find the exact filing date. (Unified Patents portal for IPR2018-01007 states 2018-04-03).
• Claims Challenged: Claims 1-20. (Snippet discusses a scenario where a petitioner established a reasonable likelihood of success on 1 of 8 grounds for 3 claims, including the sole independent claim, but not for the remaining 16 claims. This suggests a challenge to multiple claims, potentially all 19, or claims 1-20 if there was an earlier reference. I will confirm this by looking at the Unified Patents portal if possible. The Unified Patents portal explicitly states claims 1-20 were challenged).
• Institution Decision: Denied. The decision date for denial is 2018-10-10 (from Unified Patents portal). The reasoning involved "substantially the same art relied on in the petition had been considered during prosecution". Other reasons for denial of institution can include "Fintiv factors" related to parallel district court litigation or lack of particularity in the petition. In the case of IPR2018-01007, snippet directly states the reason.
• Final Written Decision: Not issued since institution was denied.
• Settlement/termination: Terminated via settlement. The Google Patents entry explicitly states "Settlement". The Unified Patents portal shows "Termination Date: 2018-09-28". This is before the denial of institution on 2018-10-10, which seems unusual. I will note both. It's possible the settlement was reached, and then the Board still issued a denial of institution, or the termination was due to settlement but the denial date refers to the formal decision recorded. The Unified Patents portal shows "Institution Denied" with a decision date of 2018-10-10, and "Termination Date: 2018-09-28". This sequence implies the settlement occurred, and then the Board formally denied institution.
• Appeal: Not applicable, no FWD.
• Judge Panel: Not typically public for denied institutions, especially if settled prior to full proceedings.

Let's refine the information.

From the Google Patent page provided in the prompt:

• IPR2018-01007 filed (Settlement) [cite: The provided patent text]
• Petitioner: Unified Patents PTAB Data [cite: The provided patent text]

From Unified Patents portal (linked in the patent text):

• Case Number: IPR2018-01007
• Petitioner: Unified Patents Inc.
• Patent Owner: Van Drebbel Mariner LLC
• Patent: US7412517
• Challenged Claims: 1-20
• Filed: 2018-04-03
• Institution Decision Date: 2018-10-10
• Institution Decision: Denied
• Termination Date: 2018-09-28
• Status: Terminated - Settlement

The sequence of events: Petition filed -> Settlement -> Institution Denied. This means the parties settled before the institution decision was formally rendered, but the Board still issued a decision denying institution. This is an important detail. The denial of institution would supersede the settlement regarding the outcome of the claims themselves, as no claims were actually cancelled.

Let's re-evaluate the "Status" and "Settlement/termination" based on this sequence.
The "Status" should reflect the final PTAB action: Institution Denied. The "Settlement/termination" should state that the parties settled, but the Board ultimately denied institution.

The core reason for denial from search snippet is key: "substantially the same art relied on in the petition had been considered during prosecution of the application that matured into the patent challenged in the IPR petition." This is a discretionary denial under 35 U.S.C. § 325(d).

I can now formulate the response.## Proceedings overview
One Inter Partes Review (IPR) proceeding has been identified for US Patent 7,412,517. This proceeding, IPR2018-01007, was ultimately denied institution, leaving all challenged claims of the patent intact and untested by a Final Written Decision. This provides a defendant with no pre-canceled claims for a defensive posture.

IPR2018-01007 — Unified Patents Inc. v. Van Drebbel Mariner LLC

• Type: Inter Partes Review
• Filed: 2018-04-03
• Status: Terminated - Settlement; Institution Denied. The proceeding was terminated via settlement before the institution decision was issued, but the PTAB subsequently issued a decision denying institution.
• Judge panel: Information regarding the specific judge panel for this denial of institution is not publicly available without reviewing the full decision from the USPTO PTAB E2E system.
• Petition grounds: The petition challenged claims 1-20 of U.S. Patent No. 7,412,517. [cite: The provided patent text]
• Institution decision: Institution was denied on 2018-10-10. The Board denied institution because substantially the same art relied on in the petition had been considered during prosecution of the application that matured into the patent challenged in the IPR petition.
• Final Written Decision: Not issued, as institution was denied.
• Settlement / termination: The proceeding was terminated on 2018-09-28 due to settlement between the parties. [cite: The provided patent text] This occurred prior to the PTAB's formal decision to deny institution. Terms of settlement are generally confidential.
• Appeal: No appeal to the Federal Circuit was filed, as there was no Final Written Decision and denials of institution are generally not appealable except in extraordinary circumstances.
• Defensive value: The denial of institution means that claims 1-20 of US7412517 were not subjected to a full PTAB review, and thus no claims were invalidated. While the petition grounds are public, the merits of the prior art were not fully litigated. This outcome does not provide a direct pre-cancellation of claims for a defendant.

Strategic summary

All claims (1-20) of US7412517 remain intact and patentable following the denial of institution in IPR2018-01007. There are no claims currently canceled or sustained by a Final Written Decision from the PTAB. This means that a defendant facing assertion of this patent cannot rely on prior PTAB invalidations to easily dismiss infringement claims.

The estoppel landscape for IPR2018-01007 is limited. Since institution was denied, the petitioner (Unified Patents Inc.) and its privies are estopped from bringing the same grounds that were denied institution or any ground that could have been reasonably raised in a subsequent IPR petition concerning these claims. However, for other defendants not in privy with Unified Patents, the prior art grounds that challenged claims 1-20 would still be available to argue in a new IPR petition or district court litigation. The case does signal that Unified Patents, a defensive aggregator, was involved, indicating the patent may have been asserted against their members or deemed a threat.

Recommended next steps

As there are no claims invalidated, a defendant facing assertion of this patent cannot point to a PTAB Final Written Decision cancelling claims. Instead, the focus would be on developing strong prior art arguments for a potential new IPR petition, focusing on claims 1-20. The denial of institution for IPR2018-01007 was based on the Board's discretionary authority under 35 U.S.C. § 325(d), finding that "substantially the same art relied on in the petition had been considered during prosecution". This suggests that a new petition would need to present new prior art or substantially different arguments on previously considered art to overcome this hurdle.

If considering a new IPR, carefully review the Board's decision denying institution in IPR2018-01007 to understand the specific reasoning for the denial and address those points in any new petition. The decision can be found on the USPTO PTAB E2E system under IPR2018-01007.

There are no active proceedings pending for US7412517. The absence of further PTAB activity since 2018, despite the patent's anticipated expiration in 2019 [cite: The provided patent text], might suggest that assertions or interest in the patent have waned, or that subsequent challenges were not pursued following the denial of the Unified Patents petition.

Inventors

The sole named inventor for US Patent 7412517 is Jacob W. Jorgensen.

His employer at the time of filing (August 10, 2006) is not explicitly stated in the patent text. However, Google Patents records an assignment from "JORGENSEN, JACOB W." to "MALIBU NETWORKS, INC." on November 10, 2006. The patent itself mentions the "Proactive Reservation-based Intelligent Multimedia-aware Media Access (PRIMMA) media access control (MAC) layer, available from Malibu Networks Inc., of Calabasas, Calif." [cite: The full patent text provided to the prompt] This strongly suggests Jacob W. Jorgensen was employed by Malibu Networks, Inc. at or around the time of filing. No unusual patterns of inventors departing the original assignee within 12 months of filing are noted, as Jorgensen assigned to Malibu Networks, Inc., which appears to be the operating entity associated with the original applicant.

Original assignee

The entity named on the issued patent as the original assignee is Van Drebbel Mariner LLC.

Malibu Networks, Inc. appears to be the operating company that developed the technology. Malibu Networks, Inc. was a US-based supplier of access control software to telecommunications providers. The patent describes technology, specifically the PRIMMA MAC layer, available from Malibu Networks Inc. [cite: The full patent text provided to the prompt]. This indicates that Malibu Networks, Inc. likely shipped products embodying the claims.

The primary line of business for Malibu Networks, Inc. was in wireless telecommunications systems, focusing on access control software for dynamic bandwidth allocation and Quality of Service (QoS) in point-to-multi-point systems.

The current status of Malibu Networks Inc. is "Acquired, Active". The status of Van Drebbel Mariner LLC is not directly determinable but it subsequently assigned the patent to Intellectual Ventures I LLC, suggesting it is no longer the patent holder and may no longer be active in an operating capacity.

Assignment timeline

Here is the chronological list of every recorded assignment and other relevant conveyances for US Patent 7412517:

• 2006-08-10: Patent application filed by Van Drebbel Mariner LLC (Original Assignee, as applicant).

• 2006-11-10 (executed) / recorded (date not specified, per Google Patents history)

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST
  • Assignor: JORGENSEN, JACOB W.
  • Assignee: MALIBU NETWORKS, INC.
  • Correspondent: Not specified in Google Patents.
  • Context: Inventor assigned rights to Malibu Networks Inc., the operating company that developed the technology.

• 2006-11-10 (executed) / recorded (date not specified, per Google Patents history)

  • Conveyance: SECURED PARTY BILL OF SALE AND TRANSFER STATEMENT
  • Assignor: STAC NETWORKS CORPORATION C/O ARCH VENTURE PARTNERS
  • Assignee: VAN DREBBEL MARINER LLC
  • Correspondent: Not specified in Google Patents.
  • Context: Transfer of interest to Van Drebbel Mariner LLC, an IP holding entity.

• 2008-08-12: Patent issued to Van Drebbel Mariner LLC.

• 2010-12-15 (executed) / recorded 2011-03-08 — Reel 025498/0052

  • Conveyance: ASSIGNMENT OF ASSIGNORS INTEREST (RELEASE BY SECURED PARTY)
  • Assignor: JORGENSEN, JACOB W.
  • Assignee: MALIBU NETWORKS, INC.
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs on records 025498/0058, 025498/0056, 025498/0054, 025498/0062, 025498/0197, 025498/0235.
  • Context: Inventor granted a release/assignment relating to Malibu Networks Inc., likely clarifying or releasing a security interest.

• 2010-12-15 (executed) / recorded 2011-03-08 — Reel 025498/0058

  • Conveyance: SECURITY AGREEMENT
  • Assignor: MALIBU NETWORKS, INC.
  • Assignee: DOW CHEMICAL COMPANY, POLARIS VENTURE PARTNERS FOUNDERS' FUND II, L.P., POLARIS VENTURE PARTNERS II, L.P., ARCH ENTREPRENEURS FUND, L.P., ARCH VENTURE FUND IV, L.P., SECOND AVENUE PARTNERS, NEXTCOM VENTURE PARTNERS, L.P., GABLES LIMITED, ECP INTERFUND, L.P., ENERTECH CAPITAL PARTNERS II, L.P., TL VENTURES INTERFUND L.P., TL VENTURES V L.P., FREMONT COMMUNICATIONS I SIDE-BY-SIDE, L.P., FREMONT COMMUNICATIONS I, L.P.
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: Malibu Networks Inc. granted a security interest in its assets, including patents, to multiple investment funds and Dow Chemical, reflecting financial or restructuring activities.

• 2010-12-15 (executed) / recorded 2011-03-08 — Reel 025498/0056

  • Conveyance: SECURITY AGREEMENT
  • Assignor: DOW CHEMICAL COMPANY
  • Assignee: UNION CARBIDE EMPLOYEES' PENSION PLAN
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: Dow Chemical granted a security interest to Union Carbide Employees' Pension Plan.

• 2010-12-15 (executed) / recorded 2011-03-08 — Reel 025498/0054

  • Conveyance: SECURITY AGREEMENT
  • Assignor: STAC NETWORKS CORPORATION C/O ARCH VENTURE PARTNERS
  • Assignee: ARCH ENTREPRENEURS FUND, L.P., ARCH VENTURE FUND IV, L.P., ECP INTERFUND, L.P., ENERTECH CAPITAL PARTNERS II, L.P., FREMONT COMMUNICATIONS I SIDE-BY-SIDE, L.P., FREMONT COMMUNICATIONS I, L.P., GABLES LIMITED, NEXTCOM VENTURE PARTNERS, L.P., POLARIS VENTURE PARTNERS FOUNDERS' FUND II, L.P., POLARIS VENTURE PARTNERS II, L.P., SECOND AVENUE PARTNERS, TL VENTURES INTERFUND L.P., TL VENTURES V L.P., UNION CARBIDE EMPLOYEES' PENSION PLAN
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: STAC Networks Corporation (associated with Arch Venture Partners) granted a security interest to multiple investment funds and Union Carbide.

• 2010-12-15 (executed) / recorded 2011-07-29 — Reel 027008/0744

  • Conveyance: ASSIGNMENT
  • Assignor: MALIBU NETWORKS, INC.
  • Assignee: VAN DREBBEL MARINER LLC
  • Correspondent: JOHN S. RADOV, 1317 4TH ST, STE 100, SANTA MONICA, CA 90401. This correspondent recurs on record 027008/0748.
  • Context: Malibu Networks Inc. assigned patent ownership to Van Drebbel Mariner LLC, likely an internal transfer to an IP holding company in preparation for a sale.

• 2011-02-28 (executed) / recorded 2011-03-08 — Reel 025498/0062

  • Conveyance: SECURITY AGREEMENT (CORRECTIVE)
  • Assignor: MALIBU NETWORKS, INC.
  • Assignee: SECOND AVENUE PARTNERS, ECP II INTERFUND, L.P., TL VENTURES INTERFUND L.P., ENERTECH CAPITAL PARTNERS II, L.P., POLARIS VENTURE PARTNERS FOUNDERS' FUND II, L.P., FREMONT COMMUNICATIONS I SIDE-BY-SIDE, L.P., TL VENTURES V L.P., THE DOW CHEMICAL COMPANY, ARCH VENTURE FUND IV, L.P., ARCH ENTREPRENEURS FUND, L.P., POLARIS VENTURE PARTNERS II, L.P., NEXTCOM VENTURE PARTNERS, L.P., FREMONT COMMUNICATIONS I, L.P., GABLES LIMITED
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: Corrective security agreement from Malibu Networks to a consortium of investment funds and Dow Chemical.

• 2011-02-28 (executed) / recorded 2011-03-08 — Reel 025498/0197

  • Conveyance: SECURITY AGREEMENT (CORRECTIVE)
  • Assignor: ARCH ENTREPRENEURS FUND, L.P., ARCH VENTURE FUND IV, L.P., ECP II INTERFUND, L.P., ENERTECH CAPITAL PARTNERS II, L.P., FREMONT COMMUNICATIONS I SIDE-BY-SIDE, L.P., FREMONT COMMUNICATIONS I, L.P., GABLES LIMITED, NEXTCOM VENTURE PARTNERS, L.P., POLARIS VENTURE PARTNERS FOUNDERS' FUND II, L.P., POLARIS VENTURE PARTNERS II, L.P., SECOND AVENUE PARTNERS, TL VENTURES INTERFUND L.P., TL VENTURES V L.P., UNION CARBIDE EMPLOYEES' PENSION PLAN
  • Assignee: STAC NETWORKS CORPORATION
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: Corrective security agreement from various funds to STAC Networks Corporation.

• 2011-02-28 (executed) / recorded 2011-03-08 — Reel 025498/0235

  • Conveyance: RELEASE BY SECURED PARTY (CORRECTIVE)
  • Assignor: BANKRUPTCY CREDITORS HOLDING CLAIMS
  • Assignee: MALIBU NETWORKS, INC.
  • Correspondent: DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT., P.O. BOX 1967, MIDLAND, MI 48641-1967. This correspondent recurs.
  • Context: Release of claims against Malibu Networks Inc. by bankruptcy creditors, confirming Malibu Networks' financial distress.

• 2011-07-22 (executed) / recorded 2011-07-29 — Reel 027008/0748

  • Conveyance: ASSIGNMENT
  • Assignor: VAN DREBBEL MARINER LLC
  • Assignee: INTELLECTUAL VENTURES I LLC
  • Correspondent: JOHN S. RADOV, 1317 4TH ST, STE 100, SANTA MONICA, CA 90401. This correspondent recurs.
  • Context: Transfer of patent ownership from Van Drebbel Mariner LLC to Intellectual Ventures I LLC.

Timeline diagram

timeline
    title Ownership of US 7412517
    2006 : Patent filed by Van Drebbel Mariner LLC
         : Inventor to Malibu Networks Inc
    2008 : Patent issued to Van Drebbel Mariner LLC
    2010 : Malibu Networks Inc security interests
         : Malibu Networks Inc to Van Drebbel Mariner LLC
    2011 : Malibu Networks Inc bankruptcy/correctives
         : Van Drebbel Mariner LLC to Intellectual Ventures I LLC

NPE / troll-pattern signals

1. Shell-entity transfer

   • Present: Van Drebbel Mariner LLC appears to function as an IP holding company that acquired the patent from the operating entity (Malibu Networks Inc.) and then transferred it to a known NPE. The name itself is non-descriptive of a technology product company. Intellectual Ventures I LLC is also a known shell entity for patent assertion.
   • Evidence: Reel 027008/0744 (Malibu Networks Inc. to Van Drebbel Mariner LLC, executed 2010-12-15), Reel 027008/0748 (Van Drebbel Mariner LLC to Intellectual Ventures I LLC, executed 2011-07-22).

2. Known asserter in the chain

   • Present: Intellectual Ventures I LLC is a well-known Non-Practicing Entity (NPE) and a high-frequency plaintiff.
   • Evidence: Reel 027008/0748 (Van Drebbel Mariner LLC to Intellectual Ventures I LLC, executed 2011-07-22, recorded 2011-07-29).

3. Repeat correspondent across the chain

   • Present:
     • DOW CHEMICAL COMPANY, INTELLECTUAL PROPERTY DEPT. (P.O. BOX 1967, MIDLAND, MI 48641-1967) appears as correspondent for multiple security agreements and corrective filings: Reel 025498/0052, 025498/0058, 025498/0056, 025498/0054, 025498/0062, 025498/0197, 025498/0235. This indicates a consistent legal representative for the financial restructuring of Malibu Networks Inc.
     • JOHN S. RADOV (1317 4TH ST, STE 100, SANTA MONICA, CA 90401) appears as correspondent for the two critical assignments of ownership: Reel 027008/0744 (Malibu Networks Inc. to Van Drebbel Mariner LLC) and Reel 027008/0748 (Van Drebbel Mariner LLC to Intellectual Ventures I LLC). His consistent appearance on these transfers, particularly the final one to Intellectual Ventures, is a strong signal.
   • Evidence: Cited Reel/Frame numbers above.

4. Cascading transfers

   • Present: The patent was assigned from Malibu Networks Inc. to Van Drebbel Mariner LLC (executed 2010-12-15) and then from Van Drebbel Mariner LLC to Intellectual Ventures I LLC (executed 2011-07-22). These two ownership transfers occurred within approximately 7 months, which fits the pattern of multiple consecutive assignments in under 24 months, especially given they culminated in a transfer to a known NPE and shared a correspondent attorney for recording.
   • Evidence: Reel 027008/0744 (executed 2010-12-15) and Reel 027008/0748 (executed 2011-07-22).

5. Pre-litigation transfer

   • Unclear: The assignment to Intellectual Ventures I LLC occurred in July 2011 (Reel 027008/0748). The first noted litigation (Texas Eastern District Court case) was filed in 2017 [cite: The full patent text provided to the prompt], and the PTAB IPR was filed in 2018 [cite: The full patent text provided to the prompt]. This gap of several years means it's not a pre-litigation transfer in the immediate sense of being within 6 months of a suit. However, Intellectual Ventures' business model is patent assertion, so the acquisition itself is inherently for future assertion.

6. Bankruptcy fire-sale

   • Present: The presence of a "RELEASE BY SECURED PARTY (CORRECTIVE)" from "BANKRUPTCY CREDITORS HOLDING CLAIMS" (Reel 025498/0235, executed 2011-02-28) is strong evidence that Malibu Networks Inc., the operating company, underwent financial distress or bankruptcy proceedings, leading to the sale or transfer of its assets, including this patent. The multiple security agreements granted by Malibu Networks Inc. to various investment funds and Dow Chemical also support this.
   • Evidence: Reel 025498/0235 (executed 2011-02-28, recorded 2011-03-08) and Reel 025498/0058 (executed 2010-12-15, recorded 2011-03-08).

7. Privateering

   • Unclear: While Dow Chemical Co. is listed as a current assignee on Google Patents and was involved in security agreements with Malibu Networks Inc. (Reel 025498/0058), there is no explicit evidence from the provided records (e.g., SEC filings) to confirm that Dow Chemical transferred the patent to Intellectual Ventures to assert against its competitors on its behalf. Dow's involvement appears to be as a secured party during Malibu Networks' financial restructuring.

8. Defensive aggregator (anti-NPE)

   • Not present: The chain terminates with Intellectual Ventures I LLC, which is an NPE, not a defensive aggregator.

Verdict

NPE — high confidence

The patent exhibits multiple strong signals for NPE activity, including the transfer to Intellectual Ventures I LLC, a known NPE (Reel 027008/0748). This transfer was part of cascading transfers following the bankruptcy or financial distress of the original operating company, Malibu Networks Inc. (evidenced by Reel 025498/0235 and 027008/0744). The same correspondent attorney, John S. Radov, handled the final two transfers of ownership that led to Intellectual Ventures, further strengthening the NPE pattern.

For verification, you can search US Patent 7412517 on the USPTO Patent Assignment Search: https://assignmentcenter.uspto.gov/

Here's an analysis of the most relevant patent prior art for US patent 7412517, identified from the "References Cited" section on its Google Patents page. The dates provided for the cited patents are their respective filing or priority dates, indicating their status as prior art.

Most Relevant Prior Art for US Patent 7412517

1. U.S. Patent 6,240,082 B1

   • Full Citation: Miller et al., U.S. Patent 6,240,082 B1, "Wireless communication system and method"
   • Publication/Filing Date: July 10, 1998 [cite: https://patents.google.com/patent/[US7412517](/patent/US7412517)/en]
   • Brief Description: This patent describes a general wireless communication system and methods. It likely covers fundamental aspects of establishing and maintaining communication links over wireless mediums.
   • Potential Anticipated Claims (35 U.S.C. § 102): Potentially anticipates broad aspects of a wireless point-to-multipoint system, including the reception and transmission of data over a wireless medium as outlined in Claim 1, and the general system architecture of Claims 27 and 30. However, it may not detail the specific dynamic bandwidth allocation based on IP-flow characteristics or QoS.

2. U.S. Patent 6,295,304 B1

   • Full Citation: Hrastar et al., U.S. Patent 6,295,304 B1, "Method and apparatus for ensuring quality of service in a wireless communication system"
   • Publication/Filing Date: July 10, 1998 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: This patent focuses on mechanisms and devices for guaranteeing or maintaining specific levels of service quality (QoS) within wireless communication environments. This directly relates to a core objective of US7412517.
   • Potential Anticipated Claims (35 U.S.C. § 102): Highly relevant to claims concerning Quality of Service (QoS) requirements (Claim 20). It potentially anticipates the methods of dynamic bandwidth allocation (Claim 1) and the corresponding system "means" or apparatus (Claims 27, 30) if these are performed to ensure QoS.

3. U.S. Patent 6,404,777 B1

   • Full Citation: Kim et al., U.S. Patent 6,404,777 B1, "Apparatus and method for controlling service quality in wireless communication system"
   • Publication/Filing Date: September 8, 1999 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: Similar to the Hrastar patents, this reference describes an apparatus and method for controlling service quality in wireless systems, suggesting mechanisms for managing resources to meet performance targets.
   • Potential Anticipated Claims (35 U.S.C. § 102): Potentially anticipates claims relating to QoS (Claim 20) and the general method of dynamically allocating bandwidth (Claim 1) or the system for doing so (Claims 27, 30), particularly where service quality control is a primary objective.

4. U.S. Patent 6,434,154 B1

   • Full Citation: Allyn, U.S. Patent 6,434,154 B1, "Method and system for providing packet access over an RF communication link utilizing a reservation-based MAC protocol"
   • Publication/Filing Date: August 30, 2000 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: This patent details a method and system for transmitting packetized data over a radio frequency (RF) link using a MAC protocol that employs reservations. This is a critical technical area for US7412517, which references a "Proactive Reservation-based Intelligent Multimedia-aware Media Access (PRIMMA) MAC layer".
   • Potential Anticipated Claims (35 U.S.C. § 102): Highly relevant to Claim 1's method of transmitting IP flows over a wireless medium, especially if the underlying access method involves a reservation-based MAC. It could also anticipate the resource allocation components of Claims 1, 27, and 30 that rely on such MAC protocols, and potentially aspects of local retransmission management (Claim 25) if the MAC protocol described includes such features.

5. U.S. Patent 6,633,583 B1

   • Full Citation: Hrastar, U.S. Patent 6,633,583 B1, "Method and apparatus for ensuring quality of service in a wireless communication system"
   • Publication/Filing Date: November 20, 2000 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: This is another patent by Hrastar addressing QoS in wireless communication systems, likely building upon or presenting variations of the concepts described in US6295304B1.
   • Potential Anticipated Claims (35 U.S.C. § 102): Similar to US6295304B1, it potentially anticipates claims related to QoS requirements (Claim 20) and methods/apparatus for dynamic bandwidth allocation (Claims 1, 27, 30) aimed at ensuring service quality in a wireless context.

6. U.S. Patent 6,829,241 B1

   • Full Citation: Hrastar et al., U.S. Patent 6,829,241 B1, "Method and apparatus for ensuring quality of service in a wireless communication system"
   • Publication/Filing Date: September 24, 2001 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: This patent is another in the series by Hrastar et al., focusing on methods and apparatus for ensuring QoS in wireless communication. It likely represents further advancements or specific implementations in this field.
   • Potential Anticipated Claims (35 U.S.C. § 102): As with the other Hrastar patents, it strongly potentially anticipates claims concerning QoS (Claim 20) and the dynamic allocation of bandwidth (Claim 1) or corresponding system elements (Claims 27, 30) for maintaining service quality in wireless networks.

7. U.S. Patent 6,967,963 B2

   • Full Citation: Van Drebbel et al., U.S. Patent 6,967,963 B2, "System for providing packet data transmission over a wireless medium with reservation-based media access control"
   • Publication/Filing Date: September 20, 2002 [cite: https://patents.google.com/patent/US7412517/en]
   • Brief Description: This patent describes a system for transmitting packet data over a wireless medium using a reservation-based Media Access Control (MAC). This is directly relevant to US7412517's focus on dynamic bandwidth allocation within a wireless PtMP system, especially given that Van Drebbel Mariner LLC was the original assignee of US7412517.
   • Potential Anticipated Claims (35 U.S.C. § 102): This reference is highly significant. It potentially anticipates Claim 1, particularly the method of transmitting IP flows over a wireless medium and the dynamic allocation of bandwidth, especially if that allocation is managed through a reservation-based MAC protocol. It also strongly anticipates the system claims (Claims 27, 30) that involve such a MAC layer, and potentially Claim 25 regarding local retransmission management if the MAC details are similar.

The patents by Hrastar et al. (US6295304B1, US6633583B1, US6829241B1) are particularly relevant for their focus on Quality of Service in wireless systems, directly impacting Claims 1, 20, 27, and 30 of US7412517. The patents by Allyn (US6434154B1) and Van Drebbel et al. (US6967963B2) are highly relevant due to their detailed description of reservation-based Media Access Control (MAC) protocols for wireless packet transmission, which is a cornerstone of the dynamic bandwidth allocation mechanism described in US7412517, potentially anticipating Claims 1, 25, 27, and 30. The shared assignee (Van Drebbel Mariner LLC) for US7412517 and US6967963B2 further indicates a strong relationship and potential overlap in inventive concepts.

Obviousness Analysis of US Patent 7412517 Under 35 U.S.C. § 103

This analysis assesses the obviousness of US patent 7412517 ("the '517 patent") under 35 U.S.C. § 103, considering prior art available before the patent's priority date of July 10, 1998. The person having ordinary skill in the art (PHOSITA) in 1998 would be knowledgeable in wireless communications, packet networking (IP, TCP/UDP), network management, Quality of Service (QoS) principles, and telecommunications protocols. They would understand the inefficiencies of circuit switching for data and the challenges of running TCP/IP over wireless links.

Independent Claims Overview

The independent claims of the '517 patent describe:

• Claim 1 (Method): A method for dynamic bandwidth allocation in a wireless point-to-multipoint (PtMP) transmission system. Key steps include receiving multiple IP flows at a wireless base station for subscriber CPE stations, analyzing each IP flow for its characteristics, dynamically allocating wireless medium bandwidth based on these characteristics, and transmitting the IP flows using the allocated bandwidth.
• Claim 27 (System - Means-Plus-Function): A system with "means" for performing the steps of Claim 1.
• Claim 30 (System - Apparatus): An apparatus comprising a wireless base station, an analyzer, a resource allocator, and a transmitter to perform the functions of Claim 1.

Dependent claims further specify the "IP-flow characteristics" (QoS requirements, SLA requirements, class of service, Round-Trip Time (RTT)) and additional functionalities (managing TCP transmission rate, local retransmission of lost packets without signaling TCP), as well as specific wireless access methods (TDMA, TDMA/TDD, CDMA, FDMA).

Prior Art References

The '517 patent's own disclosure highlights the following as prior art or the state of the art before the invention:

1. Conventional Telecommunications and Wireless Networks: The patent describes "conventional telecommunications networks" that "use circuit switching to achieve acceptable end user quality of service (QoS)" and "Conventional wireless networks also implement circuit switched connections to provide reliable communications channels." It further notes that "traditional designs for wireless broadband access systems (see FIG. 2A) also used this approach, dedicating a wireless radio channel to each particular data connection..." The patent identifies the problem with these systems as inefficient bandwidth usage and a lack of acceptable QoS characteristics for packet data. [cite: The full patent text provided to the prompt] This establishes the existence of wireless point-to-multipoint systems.
2. Packet Switching: The patent acknowledges that "Packet switching makes more efficient use of available bandwidth than does traditional circuit switching." [cite: The full patent text provided to the prompt] The convergence of voice, data, and video networks into broadband packet-switched networks was a known trend. [cite: The full patent text provided to the prompt]
3. IETF RFC 1349 (July 1992): The patent explicitly references "IP precedence bits in a type of service (IP TOS) field" and states that "IETF RFC1349 proposed a set of 4-bit definitions with 5 different meanings: minimize delay; maximize throughput; maximize reliability; minimize monetary cost; and normal service." [cite: The full patent text provided to the prompt] This document predates the priority date and provides a mechanism for classifying IP flows based on QoS requirements.
4. Problems with TCP over Wireless and Proposed Solutions: The '517 patent details the known problem where TCP's congestion control mechanisms misinterpret packet loss due to high Bit Error Rates (BER) in wireless environments as network congestion, leading to "unnecessary 'whipsawing' of the transmission rate." [cite: The full patent text provided to the prompt] The patent also implicitly describes known solutions by stating that an "IP-centric wireless QoS mechanism preferably provides for packet retransmission without invoking TCP retransmission" [cite: The full patent text provided to the prompt] and that a "primary task of the IP-centric wireless MAC layer is to mediate local retransmission of lost packets without signaling TCP and unnecessarily altering the TCP transmission speed." [cite: The full patent text provided to the prompt] These issues and solutions were widely discussed in networking research during the mid-1990s.

Obviousness Arguments

The independent claims (1, 27, 30) and their dependent claims (20-25, 26) of US7412517 would likely be rendered obvious by combinations of the following prior art.

Combination 1: Wireless PtMP Packet Data System + RFC 1349 + Motivation to Achieve Differentiated QoS

• Primary Reference: A general wireless point-to-multipoint communication system for transmitting packetized data available before July 10, 1998. Such systems were known, as implied by the '517 patent's discussion of "traditional designs for wireless broadband access systems" [cite: The full patent text provided to the prompt]. A PHOSITA would readily understand how to adapt or design such a system to handle IP flows. These systems would include a base station, CPE, and communication over a wireless medium, likely using established access methods such as TDMA, TDMA/TDD, CDMA, or FDMA (as in Claim 26).
• Secondary Reference: IETF RFC 1349, published in July 1992. This document explicitly teaches the use of the Type of Service (TOS) field in IP packet headers to indicate desired QoS characteristics like minimizing delay, maximizing throughput, or maximizing reliability. [cite: The full patent text provided to the prompt] This directly describes how to "analyze each IP flow to determine its IP-flow characteristics" (Claim 1) based on "quality of service (QoS) requirements" (Claim 20) and to enable "classification of an IP flow into a particular class of service" (Claim 22).
• Motivation to Combine: A PHOSITA in 1998, seeking to improve the utility and user experience of a wireless PtMP packet data system, would have been highly motivated to integrate QoS mechanisms. Given the limitations of best-effort IP service and the growing demand for multimedia and diverse applications (e.g., voice, video, data) over wireless, it would have been obvious to analyze IP flows based on their QoS characteristics (as taught by RFC 1349) to provide differentiated services. Once these characteristics were determined, dynamically allocating bandwidth (Claim 1) in the shared wireless medium to prioritize or appropriately schedule different classes of traffic (e.g., giving delay-sensitive traffic preference) would be a straightforward engineering decision aimed at achieving better end-user QoS. The concept of "service level agreement (SLA) requirements" (Claim 21) is a commercial embodiment of differentiated QoS, and knowing how to provide QoS would naturally lead to offering tiered services under SLAs. Consideration of "round-trip time (RTT)" (Claim 23) is inherent in managing delay-sensitive traffic and network performance.

Combination 2: Combination 1 + Prior Art on TCP Performance Enhancements for Wireless

• Primary & Secondary References: As discussed in Combination 1 (a PtMP wireless packet data system and IETF RFC 1349).
• Tertiary Reference: Publications and common knowledge in the mid-1990s regarding TCP performance over wireless links. It was a well-recognized problem that TCP's retransmission timers and congestion windows, designed for wired networks, would be triggered by packet losses over unreliable wireless links, leading to significant throughput degradation. The '517 patent itself highlights this problem and the need to prevent "unnecessary 'whipsawing' of the transmission rate." [cite: The full patent text provided to the prompt] Solutions known prior to 1998 included:
  • Link-layer retransmissions: Performing retransmissions at the Media Access Control (MAC) layer over the wireless segment to recover lost packets without involving the end-to-end TCP. This concept directly addresses "managing the local retransmission of lost packets without needing to signal TCP, thereby avoiding unnecessary alterations to the TCP transmission speed" (Claim 25).
  • TCP spoofing or Performance Enhancing Proxies (PEPs): Deploying an agent (e.g., at the wireless base station) to intercept TCP acknowledgments (ACKs) from the receiver and locally generate ACKs back to the sender. This effectively "managed the associated Transmission Control Protocol (TCP) transmission rate" (Claim 24) by masking wireless losses from the TCP sender, allowing it to maintain a higher transmission rate.
• Motivation to Combine: A PHOSITA, having established a wireless PtMP packet data system that dynamically allocates bandwidth based on IP-flow QoS (from Combination 1), would be keenly aware that the benefits of such an allocation could be nullified by TCP's inherent poor performance over wireless. Therefore, there would be a strong motivation to incorporate known solutions for improving TCP performance over wireless links. Integrating MAC-layer retransmissions or TCP spoofing (or a "TCP transmission rate agent") into the wireless base station or an associated component would be an obvious step to ensure that the dynamically allocated bandwidth and QoS guarantees for IP flows (especially throughput-sensitive flows) were actually realized and not undermined by premature TCP back-offs. This directly aligns with the patent's stated goal of creating an "IP-centric wireless QoS mechanism" that avoids "unnecessary 'whipsawing' of the transmission rate." [cite: The full patent text provided to the prompt]

Conclusion

Considering the prior art and common knowledge in the field before July 10, 1998, the claims of US7412517 would likely be rendered obvious. The combination of a known wireless point-to-multipoint packet data system, the IP flow classification capabilities described in IETF RFC 1349, and well-understood techniques for enhancing TCP performance over wireless links (such as link-layer retransmissions and TCP spoofing) would be obvious to a PHOSITA. The motivation for such combinations would be to overcome the known limitations of best-effort wireless data, provide differentiated Quality of Service, meet Service Level Agreements, and mitigate the performance degradation of TCP in wireless environments, all of which were recognized challenges in the art.