US 11418641

US patent 11418641, titled "Devices and methods for multipath communications," was invented by Eric M. DeLangis and is currently assigned to Competitive Access Systems Inc. The patent was filed on December 14, 2020, and issued on August 16, 2022.

The abstract describes broadband communications devices and methods that use at least two separate communication paths between the devices and a network, such as the Internet. These devices and methods are capable of receiving data concurrently or separately over the communication paths. The patent focuses on increasing bandwidth by combining these separate communication paths. The broadband devices utilize packetized data with Voice over Internet Protocol (VoIP) technologies combined with RF communications technologies.

A plain-language overview of the independent claims is as follows:

Independent Claim 1 (Device Claim):
This claim describes a device that enables multipath communications for a home or business. The device includes a connection to a traditional phone line (POTS) for one communication path to the internet, and a wireless component (like Wi-Fi) to talk to other similar devices. A central processing unit in the device is designed to first create its own internet connection over its POTS line. Then, it finds other similar devices wirelessly, which also have their own POTS lines. The device can then ask these other devices to establish their own internet connections. Finally, it combines the data from its own internet connection and the connections from the other devices to achieve a faster internet connection.

Independent Claim 10 (Method Claim):
This claim outlines a method for achieving multipath communications. It involves connecting a device to a POTS line and using the device's processor to establish an initial internet connection. The processor then identifies other wirelessly-reachable devices, each with their own POTS lines, and requests them to establish additional internet connections. The method concludes by combining the data from all these individual POTS-based internet connections to provide a higher bandwidth communication path.

Independent Claim 17 (System Claim):
This claim describes a system comprising multiple "remote communication gateways" (RCGs). Each RCG has a POTS line connection, a wireless interface, and a processor. The claim specifies that at least one RCG within this system is configured to establish its own internet connection via its POTS line, identify other RCGs nearby wirelessly, request those other RCGs to also establish internet connections via their POTS lines, and then combine the data from all these connections to provide a higher bandwidth communication path.

Regarding litigation, a search for US patent 11418641 in CAFC 2026 dockets did not yield any relevant results. While the patent's Google Patents page indicates ongoing litigation in various district courts and a PTAB case, none of the provided search snippets specifically mention US11418641 in the context of a 2026 CAFC docket. Therefore, as of April 26, 2026, there is no authoritative information from the provided search results confirming any active appeals for this specific patent in the CAFC for the year 2026.

The current date is April 26, 2026.

Here is a list of known litigation involving US patent 11418641:

• Jurisdiction: Texas Eastern District Court

  • Case Number: 4:25-cv-00886
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2025.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• Jurisdiction: Texas Northern District Court

  • Case Number: 4:25-cv-00948
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2025.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• Jurisdiction: North Carolina Eastern District Court

  • Case Number: 4:24-cv-00130
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2024.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• Jurisdiction: North Carolina Eastern District Court

  • Case Number: 5:24-cv-00505
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2024.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• Jurisdiction: California Northern District Court

  • Case Number: 3:25-cv-04595
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2025.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• Jurisdiction: California Northern District Court

  • Case Number: 5:25-cv-04595
  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2025.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

• PTAB Case: IPR2025-01382

  • Filing Date: Not explicitly provided in the snippet, but the case was filed in 2025.
  • Petitioner: Not explicitly provided in the snippet.
  • Outcome/Current Status: Not Instituted - Procedural

• First Worldwide Family Litigation:

  • Filing Date: Not explicitly provided in the snippet.
  • Jurisdiction: Not explicitly provided in the snippet.
  • Plaintiff(s): Not explicitly provided in the snippet.
  • Defendant(s): Not explicitly provided in the snippet.
  • Outcome/Current Status: Litigation

Proceedings overview

One AIA trial proceeding has been filed against US patent 11418641, which concluded with a discretionary denial of institution. This means the patent's claims were not challenged on the merits in an IPR, leaving them untested by the PTAB.

IPR2025-01382 — Red Hat, Inc. v. Competitive Access Systems Inc.

• Type: Inter Partes Review
• Filed: 2025-08-05
• Status: Discretionary Denial (Institution was denied, and the IPR did not proceed to trial)
• Judge panel: Information not publicly available through general search.
• Petition grounds: Information regarding specific claims, prior art, and statutory bases (§ 102 / § 103 / § 112) is not publicly available without direct access to the PTAB record for this specific filing.
• Institution decision: Denied. The petition for IPR2025-01382 was procedurally denied institution. This type of denial typically occurs when the PTAB exercises its discretion under 35 U.S.C. § 314(a) based on factors such as parallel district court litigation (e.g., Fintiv factors) or other procedural considerations, rather than on the merits of the prior art challenge.
• Final Written Decision (if issued): Not applicable, as institution was denied.
• Settlement / termination: Not applicable, as institution was denied.
• Appeal: Not applicable, as there was no Final Written Decision to appeal.
• Defensive value: The discretionary denial means the claims of US11418641 have not been formally reviewed for patentability by the PTAB. This outcome generally strengthens the patent owner's position as it avoids an IPR trial on the merits, making future IPR challenges against the same claims potentially harder for subsequent petitioners, depending on the specific grounds for denial and new arguments/art.

Strategic summary

All claims of US11418641 remain untested by the PTAB. There are no canceled or sustained claims as a result of PTAB proceedings. The sole IPR filed, IPR2025-01382 by Red Hat, Inc., was denied institution on discretionary grounds, meaning the PTAB did not reach the merits of the patentability challenge.

Given the discretionary denial in IPR2025-01382, no statutory estoppel under 35 U.S.C. § 315(e)(2) applies to the petitioner, Red Hat, Inc., or its privies with respect to the specific grounds raised in that petition. However, the Fintiv factors or similar discretionary considerations applied by the PTAB can make it more challenging for a petitioner to institute an IPR if there is parallel district court litigation involving the same patent. For a defendant currently facing assertion of this patent, all prior-art grounds remain theoretically available, as no claims have been adjudicated by the PTAB.

This patent has seen a single IPR attempt which was procedurally denied institution. The information available suggests this patent is involved in active litigation in various district courts (Texas Eastern, Texas Northern, North Carolina Eastern, California Northern) and has also seen a "First worldwide family litigation filed". The discretionary denial of IPR2025-01382, likely due to these parallel district court proceedings, indicates the patent owner is actively enforcing the patent in court and successfully fended off an IPR challenge at the institution stage.

Recommended next steps

The patent has successfully avoided a full IPR trial, meaning its claims have not been subjected to PTAB scrutiny on the merits. If you are a defendant facing assertion of US11418641, you should investigate the specific reasons for the discretionary denial in IPR2025-01382. Understanding the PTAB's reasoning (e.g., application of Fintiv factors) is crucial for assessing the viability of any future IPR filings. The official status from the PTAB portal for IPR2025-01382 can be accessed via the USPTO PTAB E2E system (e.g., search for IPR2025-01382 on https://ptab.uspto.gov/#/search/). The current absence of claims invalidated by the PTAB means that any infringement theory built upon the patent's claims is currently unimpaired by PTAB decisions.

Inventors

• Eric M. DeLangis (Competitive Access Systems Inc.)

Original assignee

The original assignee is Competitive Access Systems Inc.. The patent describes a "Residential Communications Gateway (RCG)" device that combines IP router, Class 5 circuit switch, and wireless LAN capabilities, suggesting they shipped a product embodying the claims. Their primary line of business, as inferred from the patent, appears to be providing telecommunication services and equipment to Competitive Local Exchange Companies (CLECs) to compete with Local Exchange Companies (LECs) for residential voice and data services.

Regarding its current status, the legal status of the patent itself is "Expired - Lifetime, expires 2023-12-11", which predates the current date of 2026-05-21. This indicates that Competitive Access Systems Inc. (or any subsequent assignee) would no longer hold enforceable rights under this specific patent.

Assignment timeline

As of May 21, 2026, a search of the USPTO Assignment Center for patent number US11418641 reveals no recorded assignments for this patent. This indicates that the ownership of the patent remains with the original assignee, Competitive Access Systems Inc., as listed on the issued patent.

Timeline diagram

timeline
    title Ownership of US 11418641
    2002 : Priority date
    2003 : Application filed
    2022 : Patent issued to Competitive Access Systems Inc
    2023 : Patent expired

NPE / troll-pattern signals

1. Shell-entity transfer — not present (No assignments are recorded, so no transfers to shell entities have occurred.)

2. Known asserter in the chain — not present (No assignments are recorded, thus no known asserters are in the chain.)

3. Repeat correspondent across the chain — not present (No assignments are recorded, so no correspondent patterns can be observed.)

4. Cascading transfers — not present (No assignments are recorded.)

5. Pre-litigation transfer — not present (While litigation is noted, there are no recorded assignments preceding it.)

6. Bankruptcy fire-sale — unclear (There is no information in the provided patent text or the USPTO assignment search results to indicate whether the original assignee, Competitive Access Systems Inc., has filed for bankruptcy or if the patent was sold in such proceedings.)

7. Privateering — unclear (There is no information in the provided patent text or the USPTO assignment search results to suggest privateering.)

8. Defensive aggregator (anti-NPE) — not present (No assignments are recorded, and the patent's legal status is expired.)

Verdict

Insufficient data (No recorded assignments for US11418641 are found in the USPTO Assignment Center. Therefore, a comprehensive analysis of the ownership chain and potential NPE patterns cannot be performed beyond the original assignee.)

For verification, you can search the USPTO Assignment Center: https://assignmentcenter.uspto.gov/

To identify the most relevant prior art for US patent 11418641, I need to access the patent's full citation list. The USPTO provides tools like Patent Public Search and Patent Center to search for patents and their associated information, including citations. I will use these tools to retrieve the necessary data.

Please note that directly performing a live search of the USPTO database and extracting specific details for each citation, including publication/filing dates, brief descriptions, and claims potentially anticipated, is a multi-step process that cannot be fully automated and directly presented in this format without manual review of each cited patent. However, I can outline the process and provide a template for how the information would be presented.

Process to identify and analyze prior art:

1. Access USPTO Patent Public Search: I will navigate to the USPTO Patent Public Search website.
2. Search for Patent US11418641B2: I will enter "11418641" into the patent number search field.
3. Retrieve Patent Document: I will access the full patent document for US11418641B2.
4. Locate "References Cited" Section: Within the patent document, I will find the section listing prior art references cited by the applicant and/or the examiner.
5. Extract Information for Each Citation: For each cited patent, I will extract the following:
   • Full citation (e.g., Patent Number, Inventor, Issue Date).
   • Publication/Filing Date.
   • A brief description (usually found in the abstract or first claim of the cited patent).
   • Identify which claim(s) of US11418641B2 are potentially anticipated by the reference under 35 U.S.C. § 102. This step requires a detailed claim-by-claim analysis, comparing the elements of US11418641B2's claims against the disclosure of each prior art reference. This part of the analysis often requires human expert judgment to determine "potential anticipation."

Template for Prior Art Analysis:

Here's how the analysis for each relevant prior art reference would be presented:

Prior Art Reference [X]:

• Full Citation: [Patent Number], [Inventor(s)], [Issue Date]
• Publication/Filing Date: [Date]
• Brief Description: [Concise summary of the prior art's invention, focusing on its core technology and purpose, based on its abstract or main claims.]
• Potentially Anticipated Claims of US11418641B2 (under 35 U.S.C. § 102):
  • Claim [#]: [Explanation of how the prior art element-for-element discloses or renders obvious the claim element.]
  • Claim [#]: [Explanation]
  • ... (List all claims potentially anticipated)

Once I have performed the detailed examination of each cited patent, I will populate this template.

Obviousness Analysis of US Patent 11418641 Under 35 U.S.C. § 103

This analysis identifies combinations of prior art references that would render the claims of US patent 11418641 obvious to a person having ordinary skill in the art (POSITA) at the time of the invention (priority date October 15, 2002). The motivation for combining these references stems directly from the problems and desired improvements articulated in the patent's own "Background of Invention" and "Summary of the Invention" sections.

1. Claim Interpretation (Inferred from Patent Text)

US patent 11418641, titled "Devices and methods for multipath communications," describes a Residential Communication Gateway (RCG) device and associated methods. Key features of the RCG and its operation, as gathered from the abstract, summary, and detailed description, include:

• Multipath Communication: The RCG operates with at least two communication paths (e.g., POTS modem connection, 802.11 wireless interface, Ethernet, USB) between the device and a network, such as the Internet. [cite: Abstract]
• Broadband over POTS: It leverages existing POTS lines to provide "24/7 always-on Internet access" and "high bandwidth data services" to residences without requiring new infrastructure like DSL or cable. [cite: Summary of the Invention]
• VoIP Services: It provides packetized voice services (VoIP) for up to three separate telephone numbers over a single POTS line, compatible with existing PSTN. [cite: Summary of the Invention]
• Dynamic Bandwidth Allocation & QoS: It prioritizes voice packets over data packets to ensure Quality of Service (QoS) for real-time communications. [cite: Description, Dynamic Bandwidth Allocation]
• Multilink PPP for Bandwidth Aggregation: It employs an 802.11b/g wireless interface to configure a multilink PPP bundle (per RFC 1990) comprised of POTS lines connected to multiple RCGs, aggregating their bandwidth for large file transfers. [cite: Description, Multilink PPP Connections]
• Dynamic Multilink Management: It dynamically adds or removes remote RCGs from the multilink bundle based on available POTS bandwidth and local demands. [cite: Description, Multilink PPP Bandwidth Allocation and Initialization]
• Wireless Hopping & Access Point Connectivity: It can communicate directly with broadband neighborhood access points (Wi-Fi hot spots) via 802.11 wireless, or bounce/relay data traffic between RCGs to extend reach or utilize faster connections. [cite: Description, Broadband Over POTS, Bouncing or Hopping Traffic]
• Routing Tables: It maintains routing tables to identify and manage other RCGs and access points in its local area for efficient data routing. [cite: Description, RCG Router Tables]
• Remote Upgradability: It supports remote, unassisted software and operating system upgrades. [cite: Description, Remote Upgradability]

2. Prior Art Review (Identified from Patent Text)

The patent itself describes or implicitly acknowledges the existence of several key technologies as prior art, which a POSITA would have been familiar with at the priority date of October 15, 2002:

• POTS (Plain Old Telephone Service) and PSTN (Public Switched Telephone Network) Infrastructure: The invention is designed to enhance, not replace, existing POTS lines, and frequently references LECs, Class 5 offices, T-carriers, and the PSTN. [cite: Background of Invention, Summary of the Invention, Description, Call Flow 2, Broadband Over POTS]
• Modems and Dial-up Connections: The RCG utilizes a "Modem/DAA 41" to establish a connection over the POTS line. [cite: Description, Services Provided by the RCG] The patent discusses "standard ISP connection is made from a home computer." [cite: Description, System Initialization]
• VoIP (Voice over Internet Protocol) Technologies: The patent describes "VoIP services" being offered over broadband and details the use of SIP (Session Initiation Protocol) and RTP (Real Time Protocol) for call setup and media transfer, explicitly referencing "IETF RFC2543" for SIP message handling. It also mentions voice encoding standards like G.729, G.723.1, and G.711. [cite: Background of Invention, Description, Call Flow 1]
• IP Routers and Routing Principles: The RCG is described as combining "capabilities and features of IP routers" and creating "routing tables, much like an IP router device." DHCP (Dynamic Host Configuration Protocol) for IP address assignment is also mentioned. [cite: Summary of the Invention, Description, System Initialization, RCG Router Tables]
• Wireless LAN (802.11 standards): The patent refers to the "ubiquitous 802.11 wireless protocol" (e.g., 802.11b/g, 802.11a) for wireless home networking and communication with other RCGs and access points. [cite: Summary of the Invention, Description, Detailed Description of the Invention, Multilink PPP Connections, Bouncing or Hopping Traffic]
• Multilink PPP (RFC 1990): The patent explicitly states the RCG implements multilink PPP "per RFC 1990" to bundle POTS lines. [cite: Description, Multilink PPP Connections]
• DSL and Cable Modems: These are discussed as existing "high-speed or broadband backbones" with associated costs and deployment challenges. [cite: Background of Invention]
• Quality of Service (QoS) Mechanisms: The patent highlights the importance of QoS for effective voice communications over IP networks and describes how the RCG prioritizes voice packets. [cite: Background of Invention, Competition, Description, Dynamic Bandwidth Allocation]
• Network Access Points / Wi-Fi Hotspots: The patent describes RCGs communicating with "802.11 Network Access Point— 93" or "broadband neighborhood access point (Wi-Fi hot spot)." [cite: Brief Description of the Drawings, FIG. 8, Description, Broadband Over POTS]

3. Motivation to Combine

The "Background of Invention" section of US11418641 clearly articulates several problems that would motivate a POSITA to combine existing technologies:

1. Limited Competition for CLECs: CLECs struggle to compete with LECs due to regulated pricing and reliance on reselling existing LEC services. There was a strong motivation for CLECs to offer "more features or services" at "a lower cost" over "existing POTS lines." [cite: Background of Invention]
2. High Cost and Complexity of Existing Broadband/VoIP Solutions: DSL and cable modems required "expensive infrastructure enhancements" and were "difficult to deploy and too complicated for the average user." Existing Internet-based VoIP suffered from "Internet delays caused by a lack of true Quality of Service (QOS)." [cite: Background of Invention, Competition]
3. POTS Bandwidth Limitation: A single POTS line was limited to a "maximum of 56 Kbps" for data transfer, hindering the ability to transfer "large files such as video files." [cite: Description, Broadband Over POTS] This creates a strong motivation to find ways to increase effective bandwidth over POTS.
4. Congestion on Class 5 Offices: Widespread deployment of always-on modem connections could "tie up the class 5 switch in a fashion that it was not designed for," potentially leading to expensive expansions. [cite: Description, Broadband Over POTS] A POSITA would be motivated to find ways to relieve this congestion.

A POSITA, typically an engineer or technician with experience in telecommunications and data networking at the time, would be motivated to address these challenges by creatively combining known, cost-effective technologies to enhance services over the ubiquitous POTS infrastructure without requiring extensive new deployments.

4. Obviousness Argument

Combination 1: RCG's Multi-line VoIP and Always-on Data over POTS with QoS Prioritization

A POSITA would find it obvious to combine existing POTS modems, VoIP technology (including SIP and RTP protocols and codecs), and IP routing capabilities within a single residential device to provide enhanced voice and data services.

• POTS Modems + VoIP: The use of standard modems to establish an "always-on" dial-up Internet connection over a POTS line was well-known. Once an IP connection is established, transmitting packetized voice (VoIP) over that connection is a direct application of known VoIP technologies (like those described in IETF RFC2543 for SIP signaling and RTP for media). [cite: Background of Invention, Competition, Description, Call Flow 1]
• Multiple Lines over VoIP: Providing multiple virtual telephone lines over a single physical IP connection by assigning unique SIP addresses to different "POTS ports" on the device would be an obvious extension of VoIP's capabilities, as VoIP inherently supports multiple concurrent calls over a shared IP network. [cite: Description, System Initialization]
• QoS Prioritization: The patent acknowledges that "Quality Of Service (QOS) is important for effective communications over electronic networks" and that "voice data is carried over a “data centric” network topology (an IP based network), call quality can suffer greatly." [cite: Description, Dynamic Bandwidth Allocation] Therefore, a POSITA designing a device to carry both voice and data over a shared, potentially limited, IP link would recognize the need to prioritize real-time voice packets over less time-sensitive data packets. This is a fundamental principle of network management for converged services.

The motivation is to allow CLECs to offer advanced VoIP features (like multiple lines, call forwarding, etc.) and continuous Internet access over the customer's existing POTS line, making them more competitive without incurring the high infrastructure costs of DSL or cable. [cite: Background of Invention]

Combination 2: Multilink PPP over Aggregated POTS Lines Coordinated via 802.11 Wireless

The RCG's ability to aggregate bandwidth from multiple POTS lines using multilink PPP, coordinated wirelessly, is an obvious combination of known techniques motivated by the desire to overcome the 56 Kbps POTS limitation for large data transfers.

• Multilink PPP (RFC 1990) + POTS Modems: RFC 1990 specifically describes how to combine multiple PPP links into a single logical link to increase aggregate bandwidth. A POSITA seeking to increase data transfer rates over POTS lines, knowing the 56 Kbps limitation, would naturally look to multilink PPP as a standard solution to bundle multiple POTS modem connections. [cite: Description, Multilink PPP Connections]
• 802.11 Wireless for Coordination: The 802.11 wireless interface on the RCG is used for "wireless home networking." [cite: Summary of the Invention] Extending this to communicate with other nearby RCGs for the purpose of coordinating a multilink PPP session would be obvious. The 802.11 interface provides a local, high-speed control channel for RCGs to discover each other, negotiate participation, and relay aggregated data. The patent itself notes that the "POTS data rate of 56 Kbps is miniscule as compared to the 11/54 Mbps 802.11b/g transfer rate," making wireless relay practical. [cite: Description, Bouncing or Hopping Traffic]
• Distributed Bandwidth Aggregation: The motivation to transfer "large files such as video files over the POTS lines to a residence" drives the need for aggregated bandwidth. [cite: Description, Broadband Over POTS] A POSITA would recognize that if a single RCG's POTS line is insufficient, leveraging idle capacity from neighboring RCGs via a readily available local wireless network (802.11) is an efficient and cost-effective approach to pooling resources without centralized infrastructure. This approach directly addresses the problem of expensive DSL/cable deployments.

Combination 3: Dynamic Management of Multilink PPP Bundle

The dynamic monitoring, addition, and removal of RCGs from the multilink bundle based on bandwidth availability and local demands would be an obvious implementation detail for a POSITA.

• Network Resource Management: In any shared or aggregated networking environment, monitoring link status and available bandwidth is a standard practice for resource management and QoS. The patent mentions the RCG "continually monitors the bandwidth of each remote RCG's— 86 multilink link." [cite: Description, Multilink PPP Bandwidth Allocation and Initialization]
• Dynamic Adaptation: Given that remote RCGs have their own "local" service requirements and available bandwidth can change, it would be obvious to a POSITA to implement mechanisms to dynamically adjust the links in the multilink PPP bundle. This prevents degraded performance and maintains QoS for the initiating RCG. The patent describes the initiating RCG instructing remote RCGs to remove themselves if bandwidth falls below a threshold or if local demands increase. [cite: Description, Multilink PPP Bandwidth Allocation and Initialization] Such control is necessary for a "minimum Quality of Service" in a dynamic environment. [cite: Description, Multilink PPP Bandwidth Allocation and Initialization]

Combination 4: Integration of Wi-Fi Hotspots and Hopping

The RCG's ability to utilize nearby 802.11 Network Access Points (Wi-Fi hot spots) and to relay traffic (hop) between RCGs for improved connectivity would be obvious.

• RCG + Wi-Fi Hotspots: The patent discusses RCGs "automatically detect the presence of the compatible neighborhood access points and register with that equipment for transport services." [cite: Description, Broadband Over POTS] Given the proliferation of 802.11 wireless networks and the concept of public/neighborhood access points (Wi-Fi hotspots), it would be an obvious optimization for a multi-path communication device (like the RCG) to use these higher-bandwidth direct wireless links when available, especially to relieve congestion on Class 5 offices. [cite: Description, Broadband Over POTS]
• Wireless Hopping/Relaying: The concept of relaying or "hopping" data traffic between wireless nodes to extend range or reach a distant access point is a known technique in wireless networking, particularly in ad-hoc networks, which the RCG can participate in. [cite: Description, Bouncing or Hopping Traffic, Brief Description of the Drawings, FIG. 9] The patent notes the 802.11 transfer rate is significantly higher than POTS, making hopping practical. [cite: Description, Bouncing or Hopping Traffic]

Combination 5: Remote Upgradability

The inclusion of a remote upgradability feature in a network-connected device is a widely known and commonly implemented engineering practice, particularly for devices deployed in residences where physical access for maintenance is costly and inconvenient. The patent describes this as a way for the system operator to "add new features... or to correct bugs remotely." [cite: Description, Remote Upgradability] This is a standard feature for networked consumer electronics and embedded systems.

Conclusion

Based on the information presented within US patent 11418641 itself, a person having ordinary skill in the art at the time of the invention would have been motivated to combine known technologies such as POTS modems, VoIP, IP routing, 802.11 wireless LANs, and Multilink PPP (RFC 1990) to create a residential device (the RCG) that provides enhanced, cost-effective, and higher-bandwidth communication services over existing POTS infrastructure. The patent's detailed explanation of the problems with existing solutions, coupled with the explicit references to standard technologies, clearly lays out the framework for these obvious combinations. The dynamic management and integration with other wireless broadband options (hotspots, hopping) represent logical and common networking optimizations.