US 8958853

Summary of U.S. Patent 8,958,853 and Recent Legal Status

Washington, D.C. - A concise summary of United States Patent 8,958,853, titled "Mobile device inactive mode and inactive mode verification," reveals a technology aimed at reducing distracted driving by managing mobile device notifications. This patent has recently been the subject of a federal court ruling that impacts its validity.

Patent Overview:

• Title: Mobile device inactive mode and inactive mode verification
• Assignee: The current assignee is listed as Tjtm Technology LLC. The original assignee was "Individual".
• Inventor: Nick Bovis
• Filing Date: October 15, 2014
• Issue Date: February 17, 2015
• Abstract: The patent describes a mobile device with a processor and memory containing instructions to perform several steps. These include receiving a user's choice to have an "inactive mode" automatically start when an action indicates the device is in a moving vehicle. When a communication is received while in this mode, the device sends an "away message" instead of notifying the user. If not in inactive mode, it provides a standard notification.

Independent Claims in Plain Language:

U.S. Patent 8,958,853 has one independent claim.

• Claim 1: This claim describes a mobile device equipped with a wireless communication module, a processor, and memory. The core of the invention is a process where the device:
  1. Shows a user interface that allows the user to customize how the "inactive mode" works.
  2. Receives the user's instruction to automatically turn on this inactive mode when the phone pairs with a vehicle.
  3. Lets the user choose a specific "away message" to be sent during inactive mode.
  4. Automatically activates the inactive mode once it pairs with the vehicle.
  5. When a call, text, or other communication comes in during inactive mode, it automatically sends the pre-selected away message and blocks the usual sound, screen, or vibration alerts that the user would normally receive.

Recent CAFC Docket Information:

Recent legal activity indicates that this patent was the subject of an appeal at the U.S. Court of Appeals for the Federal Circuit (CAFC). In the case of TJTM Technologies, LLC v. Google LLC, docket number 25-1218, the court reviewed the patent's validity. On May 5, 2026, the CAFC affirmed a lower court's decision to dismiss a patent infringement lawsuit brought by TJTM Technologies against Google. The court found the patent claims to be directed towards the abstract idea of "screening notifications" and therefore not eligible for patent protection under 35 U.S.C. § 101. The court noted that the patent described a sequence of conventional steps on a generic mobile device without offering a specific technological improvement. Arguments for the case were heard in April 2026.

Litigation History of U.S. Patent 8,958,853

U.S. Patent 8,958,853, titled "Mobile device inactive mode and inactive mode verification," has been the subject of multiple patent infringement lawsuits filed by its owners, SMTM Technology, LLC, and its successor, TJTM Technologies, LLC. The patent, which covers technology for suppressing mobile device notifications to prevent distracted driving, has been asserted against several major technology companies.

A summary of the known litigation is as follows:

1. TJTM Technologies, LLC v. Google LLC

• Plaintiff: TJTM Technologies, LLC
• Defendant: Google LLC
• Jurisdiction: U.S. District Court for the Northern District of California
• Case Number: 3:24-cv-01232
• Filing Date: September 3, 2024
• Status/Outcome: The district court granted Google's motion to dismiss, finding the patent invalid under 35 U.S.C. § 101 as being directed to the abstract idea of "screening notifications." TJTM Technologies appealed the decision to the U.S. Court of Appeals for the Federal Circuit (CAFC). On May 5, 2026, the CAFC affirmed the district court's dismissal in a nonprecedential decision, agreeing that the patent claims were directed to an abstract idea and lacked an inventive concept.

2. TJTM Technologies, LLC v. Google LLC (CAFC Appeal)

• Plaintiff: TJTM Technologies, LLC
• Defendant: Google LLC
• Jurisdiction: U.S. Court of Appeals for the Federal Circuit
• Case Number: 25-1218
• Filing Date: November 26, 2024
• Status/Outcome: The CAFC affirmed the lower court's dismissal on May 5, 2026, ruling that the patent is invalid because it is directed to an abstract idea.

3. TJTM Technologies, LLC v. [Samsung Electronics America, Inc.](/litigations/by-plaintiff/Samsung%20Electronics%20America%2C%20Inc.)

• Plaintiff: TJTM Technologies, LLC
• Defendant: Samsung Electronics America, Inc.
• Jurisdiction: U.S. District Court for the Northern District of California
• Case Number: 4:21-cv-05500
• Filing Date: July 16, 2021
• Status/Outcome: This case was closed on January 25, 2022. The specific details of the resolution are not publicly available but the closure suggests a settlement or dismissal.

4. SMTM Technology, LLC v. [Apple Inc.](/litigations/by-plaintiff/Apple%20Inc.)

• Plaintiff: SMTM Technology, LLC
• Defendant: Apple Inc.
• Jurisdiction: U.S. District Court for the Northern District of California
• Filing Date: July 10, 2018
• Status/Outcome: SMTM Technology accused Apple's "Do Not Disturb While Driving" feature in iOS 11 of infringing the '853 patent. The complaint sought monetary damages and a permanent injunction. The precise outcome of this case is not detailed in the available results, but it is referenced as prior litigation in the later case against Google.

In addition to the district court litigation, the patent was also subject to an inter partes review (IPR) proceeding initiated by Google at the Patent Trial and Appeal Board (PTAB).

5. Google LLC v. TJTM Technologies LLC (IPR)

• Petitioner: Google LLC
• Patent Owner: TJTM Technologies LLC
• Jurisdiction: Patent Trial and Appeal Board (PTAB)
• Case Number: IPR2025-00586
• Filing Date: March 5, 2025
• Status/Outcome: The IPR was terminated on August 14, 2025. The complaint in the district court case against Google noted that a prior PTAB challenge concluded with a decision that the challenger "failed to demonstrate a reasonable likelihood" of unpatentability.

Proceedings overview

The USPTO Open Data Portal (ODP) API indicates no AIA trial proceedings on file for U.S. Patent 8,958,853. However, contradicting this, the Google Patents page for US8958853 explicitly lists two inter partes review (IPR) proceedings. Both of these IPRs were not instituted, with one denied on procedural grounds and the other on merits. This means that all claims of the patent have survived PTAB challenges to institution, and remain untested by a Final Written Decision. This posture makes an IPR-based defense harder for a defendant, as prior art arguments have already been considered and deemed insufficient for trial.

IPR2019-00434 — Unified Patents v. Tjtm Technology LLC (incorrectly listed as 'Petitioner: Unified Patents' without Patent Owner on Google Patents)

• Type: Inter Partes Review
• Filed: 2019-01-04
• Status: Not Instituted - Merits
• Judge panel: Fred E. McKelvey, Brian J. McNamara, Michael J. Zecher
• Petition grounds: The petition challenged claims 1-9 as unpatentable under 35 U.S.C. § 103 over US 2005/0119002 A1 (Bauchot) in view of US 2011/0039581 A1 (Cai), and under 35 U.S.C. § 102(b) and § 103(a) over various combinations of prior art including Layborn and Nokia Lumia.
• Institution decision: Denied — 2019-07-16. The panel found that the petitioner had not demonstrated a reasonable likelihood that it would prevail with respect to any of the challenged claims. Specifically, for the primary grounds, the Board found that Unified Patents had not sufficiently demonstrated obviousness, particularly regarding how the cited prior art would teach the "pairing of the mobile device with a vehicle" limitation of claim 1, or the specific customization aspects and away message selection.
• Final Written Decision: Not applicable due to non-institution.
• Settlement / termination: Not applicable due to non-institution.
• Appeal: Not applicable due to non-institution.
• Defensive value: Unified Patents failed to convince the PTAB to institute review on the merits, indicating that the asserted prior art combinations (Bauchot, Cai, Layborn, Nokia Lumia) were insufficient to establish a reasonable likelihood of invalidating claims 1-9. This suggests that an IPR challenge using similar prior art or arguments may face an uphill battle for institution.

IPR2025-00586 — Unified Patents v. Tjtm Technology LLC (incorrectly listed as 'Petitioner: Unified Patents' without Patent Owner on Google Patents)

• Type: Inter Partes Review
• Filed: 2025-03-05
• Status: Not Instituted - Procedural
• Judge panel: Not publicly available as institution was denied.
• Petition grounds: The petition challenged claims 1-9. Specific prior art and statutory grounds are not detailed in the public record of non-institution.
• Institution decision: Denied — 2025-08-14. The petition was procedurally denied, likely under 35 U.S.C. § 314(a) (discretionary denial, e.g., Fintiv factors) or 35 U.S.C. § 325(d) (same or substantially same prior art/arguments previously presented).
• Final Written Decision: Not applicable due to non-institution.
• Settlement / termination: The IPR was terminated on 2025-08-14.
• Appeal: Not applicable due to non-institution.
• Defensive value: This second IPR by Unified Patents was also denied institution, this time on procedural grounds. This further reinforces the difficulty of challenging this patent via IPR, as the PTAB has twice declined to proceed to trial. The underlying reasons for the procedural denial would be important context, as they might relate to whether the petition was considered a serial attack or otherwise inefficient.

Strategic summary

All nine claims of U.S. Patent 8,958,853 remain sustained and untested by a Final Written Decision from the PTAB. Both IPR challenges, IPR2019-00434 and IPR2025-00586, initiated by Unified Patents, were denied institution. IPR2019-00434 was denied on the merits, with the PTAB finding that the petitioner did not show a reasonable likelihood of prevailing on the unpatentability of any challenged claims (1-9) over the cited prior art. IPR2025-00586 was denied on procedural grounds.

The estoppel landscape under 35 U.S.C. § 315(e)(2) will apply to Unified Patents and its privies. They are barred from asserting in other proceedings that claims 1-9 are unpatentable on any ground that was raised or reasonably could have been raised in IPR2019-00434. For a new defendant being asserted against, this means that prior-art grounds previously argued by Unified Patents, particularly those involving Bauchot and Cai, would be available but would need a stronger argument to overcome the PTAB's prior non-institution decision on the merits. The procedural denial of IPR2025-00586 might indicate that attempts to re-litigate similar grounds could face discretionary denial. The pattern shows that the patent owner (TJTM Technologies LLC) has successfully defended against PTAB challenges to date.

Recommended next steps

Given that both IPRs filed by Unified Patents were denied institution, the primary strategy of challenging the patent's validity at the PTAB using the same or substantially similar prior art as in IPR2019-00434 will be difficult.

1. Review Institution Decisions: Obtain and thoroughly review the full written decisions for the denial of institution for IPR2019-00434 and IPR2025-00586. These documents will detail the PTAB's reasoning, which is crucial for understanding why previous challenges failed and what arguments or prior art were considered lacking.
   • For IPR2019-00434, the institution decision is dated 2019-07-16.
   • For IPR2025-00586, the termination date is 2025-08-14, which corresponds to the denial of institution.
2. Evaluate New Prior Art: If considering an IPR, extensive prior art searching for new, stronger references not presented in the previous IPRs would be necessary. The CAFC's recent affirmation of invalidity under § 101 in TJTM Technologies, LLC v. Google LLC, case number 25-1218, is a significant development and suggests that the patent faces fundamental eligibility issues.
3. Focus on Section 101: The Federal Circuit's ruling that the patent claims are directed to the abstract idea of "screening notifications" and are therefore patent-ineligible under 35 U.S.C. § 101, is a critical development. This suggests that a Section 101 invalidity argument in district court may be the most potent defensive strategy. The PTAB does not typically rule on § 101 patent eligibility, so the CAFC's decision is highly impactful and separate from the IPR non-institution decisions.## Proceedings overview

The USPTO Open Data Portal (ODP) API indicates no AIA trial proceedings on file for U.S. Patent 8,958,853 as of the most recent ingest. However, the Google Patents page for US8958853, which serves as an authoritative source in this analysis, explicitly lists two inter partes review (IPR) proceedings: IPR2019-00434 and IPR2025-00586. This constitutes a direct contradiction with the ODP API statement, and the information from the Google Patents page and subsequent web searches will be prioritized.

Both IPRs were not instituted by the Patent Trial and Appeal Board (PTAB). IPR2019-00434 was denied institution on the merits, while IPR2025-00586 was denied on procedural grounds. This means that all claims of the patent have survived PTAB challenges to institution, and remain entirely untested by a Final Written Decision. This defensive posture indicates that the patent has withstood attempts to invalidate its claims through IPR, making an IPR-based defense significantly more challenging for a new defendant.

IPR2019-00434 — Unified Patents v. Tjtm Technology LLC

• Type: Inter Partes Review
• Filed: 2019-01-04
• Status: Not Instituted - Merits (as per Google Patents page for US8958853)
• Judge panel: Fred E. McKelvey, Brian J. McNamara, Michael J. Zecher
• Petition grounds: The petition challenged claims 1-9 as unpatentable under 35 U.S.C. § 103 over US 2005/0119002 A1 (Bauchot) in view of US 2011/0039581 A1 (Cai), and under 35 U.S.C. § 102(b) and § 103(a) over various combinations of prior art including Layborn and Nokia Lumia.
• Institution decision: Denied — 2019-07-16. The panel found that the petitioner had not demonstrated a reasonable likelihood that it would prevail with respect to any of the challenged claims. Specifically, for the primary grounds, the Board found that Unified Patents had not sufficiently demonstrated obviousness, particularly regarding how the cited prior art would teach the "pairing of the mobile device with a vehicle" limitation of claim 1, or the specific customization aspects and away message selection. This outcome was noted in the district court complaint against Google, stating that a prior PTAB challenge "failed to demonstrate a reasonable likelihood" of unpatentability.
• Final Written Decision: Not applicable due to non-institution.
• Settlement / termination: Not applicable due to non-institution.
• Appeal: Not applicable due to non-institution, as decisions to deny institution are generally unappealable.
• Defensive value: Unified Patents' failure to secure institution on the merits using specific prior art combinations indicates that similar arguments may not succeed in a new IPR challenge. The PTAB's reasoning on the "pairing with a vehicle" limitation and customization aspects could be particularly instructive for future validity analyses.

IPR2025-00586 — Unified Patents v. Tjtm Technology LLC

• Type: Inter Partes Review
• Filed: 2025-03-05 (from previous litigation summary)
• Status: Not Instituted - Procedural (as per Google Patents page for US8958853 and previous litigation summary)
• Judge panel: Not publicly available as institution was denied.
• Petition grounds: The petition challenged claims 1-9. Specific prior art and statutory grounds are not detailed in the public record of non-instituted cases.
• Institution decision: Denied — 2025-08-14 (termination date likely the denial date). The petition was procedurally denied, meaning the PTAB exercised its discretion not to institute review, likely based on factors such as those outlined in Fintiv, Advanced Bionics, or NHK Spring, which consider efficiency, parallel litigation, or prior presentations of art.
• Final Written Decision: Not applicable due to non-institution.
• Settlement / termination: The IPR was terminated on 2025-08-14.
• Appeal: Not applicable due to non-institution.
• Defensive value: This second non-institution, on procedural grounds, further highlights the difficulty of challenging this patent via IPR. The procedural denial suggests the PTAB found reasons beyond the merits to decline trial, which could include considerations of judicial economy given existing litigation or prior PTAB history. This indicates a high bar for any subsequent IPR attempts.

Strategic summary

All nine claims (1-9) of U.S. Patent 8,958,853 are currently sustained and untested by a Final Written Decision from the PTAB. Both IPR proceedings filed by Unified Patents (IPR2019-00434 and IPR2025-00586) were denied institution. IPR2019-00434 was denied on the merits, as the PTAB found insufficient likelihood of prevailing on the unpatentability of claims 1-9 over the cited prior art (Bauchot, Cai, Layborn, Nokia Lumia). IPR2025-00586 was denied institution on procedural grounds, further reinforcing the patent owner's success in fending off PTAB challenges.

The estoppel landscape under 35 U.S.C. § 315(e)(2) will bar Unified Patents and its privies from asserting invalidity grounds in other proceedings that were raised or reasonably could have been raised in IPR2019-00434 against claims 1-9. For any new defendant facing assertion of this patent, the prior art grounds considered in IPR2019-00434 (particularly Bauchot and Cai) remain available, but would require a significantly stronger showing to overcome the PTAB's prior finding of insufficient likelihood of success. The procedural denial of IPR2025-00586, possibly due to factors related to parallel litigation or serial challenges, indicates that the patent owner has actively utilized discretionary denial arguments.

The successful defense against two IPR petitions demonstrates a patent hardened against PTAB challenges based on the art and arguments presented. The patent owner (TJTM Technology LLC) has shown a consistent pattern of enforcing the patent, including multiple district court lawsuits and successful defense against IPRs.

Recommended next steps

1. Obtain and Analyze Institution Decisions: It is critical to obtain the full written decisions for the denials of institution for IPR2019-00434 and IPR2025-00586. These decisions will provide detailed reasoning for the PTAB's findings on the merits (for IPR2019-00434) and the specific procedural grounds (for IPR2025-00586). Understanding these rationales is essential for evaluating the viability of any new IPR petitions or district court invalidity arguments.
2. Focus on Section 101 Invalidity: Given the recent decision by the U.S. Court of Appeals for the Federal Circuit in TJTM Technologies, LLC v. Google LLC (docket number 25-1218) affirming a lower court's dismissal of an infringement lawsuit by finding the patent claims ineligible under 35 U.S.C. § 101, this avenue presents the most promising and direct path to invalidate the patent. The PTAB generally does not address Section 101, so the CAFC's ruling is a separate and highly significant development that operates independently of the IPR outcomes.
3. Prior Art Re-evaluation: If an IPR is still considered, a thorough prior art search for new and materially different art from that presented in IPR2019-00434 would be necessary to avoid procedural denial under 35 U.S.C. § 325(d) and to increase the likelihood of institution on the merits. This would need to specifically address the deficiencies identified by the PTAB in the prior institution decision.

Inventors

The sole named inventor is Nick Bovis. The patent application was filed by an individual, and there is no employer or corporate assignee listed at the time of filing. There are no unusual patterns, such as multiple inventors from a single operating company, to note.

Original assignee

The original assignee listed on the issued patent is Individual, corresponding to the inventor, Nick Bovis. There is no evidence that the original assignee developed or shipped a commercial product embodying the patent's claims.

Assignment timeline

• 2015-05-18 (executed) / recorded 2015-05-20 — Reel 035203/0849

  • Conveyance: Assignment
  • Assignor: Bovis, Nick
  • Assignee: SMTM Technologies, LLC
  • Correspondent: Matthew W. Booth, The Booth Law Office, PLC, 521 Sixth Street, Traverse City, MI, 49684. This correspondent recurs on all subsequent assignments for this patent.
  • Context: The inventor transferred the patent to a newly formed entity, SMTM Technologies, LLC, likely for assertion purposes.

• 2021-05-19 (executed) / recorded 2021-05-24 — Reel 056331/0019

  • Conveyance: Assignment
  • Assignor: SMTM Technology, LLC
  • Assignee: TJTM Technology, LLC
  • Correspondent: Matthew W. Booth, The Booth Law Office, PLC, 521 Sixth Street, Traverse City, MI, 49684. This is the same correspondent from the prior assignment.
  • Context: Internal transfer between two holding companies, both managed by the same legal representative, preceding a new wave of litigation.

• 2021-12-10 (executed) / recorded 2021-12-13 — Reel 057053/0763

  • Conveyance: Correction
  • Assignor: SMTM Technology, LLC
  • Assignee: TJTM Technologies, LLC
  • Correspondent: Matthew W. Booth, The Booth Law Office, PLC, 521 Sixth Street, Traverse City, MI, 49684. This is the same correspondent from all prior assignments.
  • Context: A corrective assignment was filed to amend the assignee's name and address from the May 2021 recording, likely to clean up the record for litigation standing.

Timeline diagram

timeline
    title Ownership of US 8958853
    2013 : Priority date established
    2015 : Issued to inventor Nick Bovis
         : Assigned to SMTM Technologies LLC
    2018 : First infringement suit filed by SMTM
    2021 : Assigned to TJTM Technologies LLC
         : New infringement suits filed by TJTM
    2026 : CAFC affirms patent is invalid

NPE / troll-pattern signals

1. Shell-entity transfer — present. The patent was transferred from its individual inventor to "SMTM Technologies, LLC" and subsequently to "TJTM Technologies, LLC" (Reels 035203/0849 and 056331/0019). These names are typical of non-operating patent holding companies, and their sole known activity is patent litigation.

2. Known asserter in the chain — present. Both SMTM Technologies, LLC and TJTM Technologies, LLC are patent assertion entities, as evidenced by the multiple infringement lawsuits they have filed against Apple, Samsung, and Google.

3. Repeat correspondent across the chain — present. A single attorney, Matthew W. Booth of The Booth Law Office, PLC, acted as the correspondent for every recorded assignment in the chain (Reels 035203/0849, 056331/0019, and 057053/0763). This is a strong indicator that the series of LLCs are controlled or managed by the same ultimate party for the purpose of assertion.

4. Cascading transfers — present. The assignment from SMTM to TJTM (May 2021) and the subsequent corrective assignment (December 2021) constitute multiple transfers within a 7-month period, suggesting a restructuring in preparation for or during litigation campaigns.

5. Pre-litigation transfer — present. The transfer from SMTM Technology, LLC to TJTM Technology, LLC was executed on May 19, 2021. Less than two months later, on July 16, 2021, TJTM filed its first lawsuit (against Samsung). This timing strongly indicates the transfer was made to prepare the patent for assertion by the new entity.

6. Bankruptcy fire-sale — not present. The original assignee was an individual and there is no record of bankruptcy proceedings.

7. Privateering — not present. The patent did not originate with an operating company transferring it to an NPE to sue its competitors.

8. Defensive aggregator (anti-NPE) — not present. The patent has been actively asserted and has not been acquired by any known defensive entity.

Verdict

NPE — high confidence

The ownership history of this patent exhibits at least five distinct and strong signals of NPE activity. The transfer from an individual inventor to a series of generically named LLCs (Reel 035203/0849, 056331/0019), the use of the same correspondent attorney for all transfers, and the timing of an assignment just months before a new litigation campaign (May 2021 transfer preceding July 2021 lawsuit) create a clear and compelling pattern of patent assertion by a non-practicing entity.

Verification of the assignment records is available at the USPTO Patent Assignment Search page for US 8,958,853.

Analysis of Prior Art for U.S. Patent 8,958,853

This analysis identifies and examines the prior art cited during the prosecution of U.S. Patent 8,958,853. Each cited reference is evaluated for its potential to anticipate the claims of the '853 patent under 35 U.S.C. § 102. The core inventive concept of the '853 patent, as detailed in claim 1, involves the automatic initiation of an "inactive mode" on a mobile device upon pairing with a vehicle, suppressing notifications, and sending a user-selected away message.

Based on the patent's file history, the following references were cited by the examiner:

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1. U.S. Patent Application Publication No. US 2005/0119002 A1

• Full Citation: US 2005/0119002 A1
• Title: System for controlling wireless communications from a moving vehicle
• Inventor: Frederic Bauchot
• Publication Date: June 2, 2005
• Filing Date: November 27, 2003
• Brief Description: This publication discloses a system that controls the functionality of a wireless communication device within a moving vehicle. It describes automatically disabling certain functions, such as incoming calls, when the vehicle is in motion. The system can be configured to automatically send a pre-recorded message to the caller, indicating that the user is driving and will call back later. The activation of this "filtering mode" can be triggered by the vehicle's ignition system or a Bluetooth connection between the device and the vehicle.
• Potential Anticipation of Claims: This reference appears to anticipate the core elements of Claim 1 of the '853 patent.
  • It teaches automatically initiating a restricted communication mode in response to the device's presence in a vehicle (e.g., via a Bluetooth connection), which aligns with "in response to the pairing of the mobile device with a vehicle" in Claim 1.
  • It describes suppressing incoming communications ("filtering mode"), which corresponds to the '853 patent's "suppressing one or more sound, visual, or vibration communication cues."
  • It discloses transmitting an automatic message to the sender, which is analogous to the "transmitting the user selected away message" element. The ability to set a "pre-recorded message" implies user selection.
  • The system described would inherently require a processor, memory, and wireless module to function as described.

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2. U.S. Patent Application Publication No. US 2011/0039581 A1

• Full Citation: US 2011/0039581 A1
• Title: Method and apparatus for restricting the use of a mobile telecommunications device by a vehicle's driver
• Inventor: Yigang Cai
• Publication Date: February 17, 2011
• Filing Date: August 12, 2009
• Brief Description: This publication describes a method for restricting a mobile device's functions based on its location and speed, determined via GPS. When the device's speed exceeds a predefined threshold, it enters a restricted mode. In this mode, it can automatically block incoming calls and text messages and can send an automatic reply to the sender. The system allows for customization, such as permitting emergency calls or calls from specific contacts.
• Potential Anticipation of Claims: This reference is highly relevant and potentially anticipates several claims, particularly if "pairing with a vehicle" is interpreted broadly to include any reliable method of detecting that the device is in a vehicle.
  • Claim 1: While this reference primarily uses GPS-determined velocity rather than Bluetooth pairing to trigger the inactive mode, it discloses the key functional steps: automatic initiation of a restricted mode ("lock state"), suppression of notifications for incoming communications, and transmission of an automatic reply message. The concept of customizing the functionality ("allowing calls to or from certain phone numbers") aligns with the '853 patent's step of providing a graphical user interface for customization.
  • Dependent Claims (4, 5, 6): The publication explicitly mentions restricting both SMS messages and cellular phone calls, which would anticipate the limitations of these dependent claims.
  • Dependent Claim 7: The reference implies a user-customized away message by stating an "automatic reply message" can be sent, which is typically a user-configurable feature in such systems.

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Summary of Anticipation

Both cited prior art references disclose the fundamental elements of claim 1 of the '853 patent. US 2005/0119002 A1 is particularly strong prior art as it explicitly teaches the use of a Bluetooth connection to a vehicle to trigger the inactive mode, directly corresponding to the "pairing" limitation in claim 1. US 2011/0039581 A1 teaches the same functional outcome but uses a different trigger (GPS-based speed). Given the existence of these references prior to the '853 patent's priority date of June 14, 2013, a strong argument exists that the independent claim and its dependent claims were anticipated and therefore not novel. This assessment aligns with the recent court decisions finding the patent's claims to be directed to a well-known, abstract idea without a sufficient inventive concept.

Obviousness Analysis of U.S. Patent 8,958,853 under 35 U.S.C. § 103

This analysis evaluates whether the claims of U.S. Patent 8,958,853 would have been obvious to a Person Having Ordinary Skill in the Art (POSITA) at the time of the invention (priority date June 14, 2013). The evaluation is based on the combination of prior art references cited during the patent's prosecution: US 2005/0119002 A1 ("Bauchot") and US 2011/0039581 A1 ("Cai").

An invention is considered obvious under 35 U.S.C. § 103 if the differences between the claimed invention and the prior art are such that the invention as a whole would have been obvious to a POSITA. This analysis demonstrates that the claims of the '853 patent are obvious in light of these prior art references.

Primary Combination: Bauchot in View of Cai

A POSITA aiming to develop a comprehensive and user-friendly system for mitigating driver distraction would have been motivated to combine the teachings of Bauchot and Cai.

• Bauchot (US 2005/0119002 A1) provides the foundational teaching for the core of Claim 1. It discloses a system that automatically activates a "filtering mode" on a mobile device when a Bluetooth link is established with a vehicle. In this mode, the system blocks incoming calls and automatically sends a "pre-recorded message" to the caller. This directly teaches the automatic initiation of an inactive mode based on vehicle pairing, the suppression of communications, and the transmission of an automatic reply.

• Cai (US 2011/0039581 A1), while using a different trigger (GPS-based speed), provides explicit detail on the user customization aspects of such a system. Cai describes allowing a user to "customize the lock state, for example, by allowing calls to or from certain phone numbers." This teaching addresses the need for user control and flexibility, which was a known requirement for such applications to gain user acceptance.

Motivation to Combine:

A POSITA would have recognized the superiority of Bauchot's Bluetooth pairing trigger for its reliability and power efficiency compared to Cai's GPS method. However, they also would have understood from Cai and the general state of the art that a successful consumer product requires user customization. The motivation would be to enhance Bauchot's technically sound system by integrating the more sophisticated customization features described by Cai. This would involve creating a graphical user interface (GUI)—the standard method on smartphones for user configuration—to allow users to enable the feature, customize the away message, and set other preferences as suggested by Cai. Combining the specific trigger from Bauchot with the user interface concepts from Cai would be a predictable and logical step to create an improved, more marketable product.

Mapping the Combination to Claim 1:

Claim 1 Element	Disclosure in Prior Art Combination
A mobile device with processor, memory, wireless module.	Inherently disclosed by both Bauchot and Cai, which describe systems running on mobile devices of the era that contained these standard components.
Providing a GUI for user customization.	Cai explicitly teaches user customization. A GUI is the obvious and conventional means for implementing such settings on a smartphone. A POSITA would have naturally used a GUI to allow a user to manage the settings described by Cai within the system of Bauchot.
Receiving user selection to automatically initiate mode upon vehicle pairing.	Directly taught by Bauchot, which describes activating the filtering mode when a "Bluetooth link is established." This requires an initial user opt-in or setup.
Receiving user selection of an away message.	Taught by Bauchot ("pre-recorded message") and Cai ("automatic reply message"). Providing user selection or customization of this message is an obvious feature for usability, as a static, unchangeable message would be impractical.
Automatically initiating the inactive mode.	Directly taught by Bauchot as the primary function of its system.
Transmitting the away message and suppressing cues.	Directly taught by Bauchot (filtering communications and sending a message) and Cai (blocking calls/texts and sending a reply). Suppressing sound, visual, or vibration cues is the inherent result of "filtering" or "blocking" a communication.

Analysis of Dependent Claims

The dependent claims of the '853 patent add minor, obvious variations that are also taught or suggested by the prior art:

• Claims 2-6: These claims specify the types of communication (SMS, email, cellular call). Cai explicitly discloses managing both SMS and phone calls. Extending this functionality to email would be an obvious, analogous step for a POSITA wanting to create a comprehensive notification management system, as all are common forms of mobile communication.
• Claim 7: This claim specifies a "user customized away message." This is a predictable implementation of the "pre-recorded message" in Bauchot and the "automatic reply" in Cai.
• Claims 8-9 (Certification Server): These claims add the step of notifying a remote "certification server" when the inactive mode begins and ends. While not present in Bauchot or Cai, the concept of remote logging for verification and monitoring was a well-established practice in the art at the time (e.g., in fleet tracking and parental control software). A POSITA, tasked with creating a way to prove the device was in an inactive state—one of the stated goals of the '853 patent—would have found it obvious to add a remote server logging function. This would be a straightforward application of a known technique to solve the specific problem of third-party verification.

Conclusion on Obviousness

The combination of Bauchot and Cai discloses all elements of Claim 1 of U.S. Patent 8,958,853. A person of ordinary skill in the art would have been motivated to combine the robust triggering mechanism of Bauchot with the user customization features suggested by Cai to create a more effective and commercially viable product. The additional limitations in the dependent claims represent predictable design choices or the application of known techniques to solve stated problems. Therefore, the claims of the '853 patent would have been obvious under 35 U.S.C. § 103. This technical assessment is consistent with the legal conclusions reached by the U.S. Court of Appeals for the Federal Circuit, which found the patent's claims were directed to an abstract idea implemented using conventional components and steps.

Analysis of Patent Term, Continuations, and Family for U.S. Patent 8,958,853

This analysis details the patent term, application history, and related family members for U.S. Patent 8,958,853 ("the '853 patent").

Patent Term and Expiration

• Patent Term Adjustment (PTA) / Extension (PTE): There is no record of any Patent Term Adjustment or Patent Term Extension for the '853 patent. The prosecution from its filing date (October 15, 2014) to its issue date (February 17, 2015) was exceptionally fast and did not incur the types of USPTO-caused delays that would trigger a PTA.
• Projected Expiration Date: The term of a U.S. patent is 20 years from the filing date of the earliest U.S. non-provisional application to which it claims priority. The '853 patent claims priority to U.S. Application No. 14/176,107, which was filed on February 9, 2014. Therefore, the projected expiration date for U.S. Patent 8,958,853 is February 9, 2034, assuming all required maintenance fees are paid in a timely manner. This is consistent with the anticipated expiration date listed in the patent's data.

Application and Family History

The '853 patent is part of a larger family of applications that all claim priority to a provisional application filed in 2013. The history demonstrates a strategy of filing subsequent applications to pursue additional or modified claims based on the original disclosure.

• Provisional Application:

  • U.S. Provisional Application No. 61/835,234: Filed on June 14, 2013. This application established the priority date for the inventions claimed in the subsequent non-provisional applications.

• Parent Application:

  • U.S. Application No. 14/176,107: Filed on February 9, 2014. This was the first non-provisional application in the family. It was published as US 2014/0370857 A1 but was later abandoned in favor of its child applications. The '853 patent directly claims priority to this application.

• The '853 Patent's Application:

  • U.S. Application No. 14/515,477: Filed on October 15, 2014, as a continuation of the '107 application. This application matured into the granted U.S. Patent 8,958,853.

• Continuation-in-Part and Subsequent Continuations:

  • U.S. Application No. 15/070,736: Filed on March 15, 2016, as a continuation-in-part of the parent '107 application. This application issued as U.S. Patent 9,973,622.
  • U.S. Application No. 15/979,410: Filed on May 14, 2018, as a continuation of the '736 application. This application issued as U.S. Patent 10,887,445.

Summary of Family Members

Application/Patent No.	Type	Filing Date	Status/Outcome
US 61/835,234	Provisional	June 14, 2013	Expired
US 14/176,107	Non-Provisional (Parent)	February 9, 2014	Published as US 2014/0370857 A1; Abandoned
US 8,958,853	Patent (from 14/515,477)	October 15, 2014	Granted
US 9,973,622	Patent (from 15/070,736)	March 15, 2016	Granted
US 10,887,445	Patent (from 15/979,410)	May 14, 2018	Granted

There are no divisional applications noted in the prosecution history of this patent family. The applicant chose to use continuation and continuation-in-part applications to pursue further claims. All patents in this family share the same projected expiration date of February 9, 2034, as they all derive their priority from the same parent application.

Defensive Disclosure and Prior Art Generation for U.S. Patent 8,958,853

Publication Date: April 26, 2026
Subject: Derivative Works and Obvious Variations of Mobile Device Inactive Mode and Verification
Reference Patent: U.S. Patent 8,958,853 (the "'853 patent")

This document discloses a series of technical variations, enhancements, and alternative implementations of the core methods described in the '853 patent. The purpose of this disclosure is to establish prior art for subsequent inventions that may be considered incremental or obvious improvements upon the original concepts.

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Derivative Works Based on Core Claims

1. Ultra-Wideband (UWB) Proximity-Based Inactive Mode with Biometric Driver Authentication

• Axis of Derivation: Material & Component Substitution
• Enabling Description: This variation replaces the generic "pairing" mechanism (e.g., Bluetooth) with a high-precision, low-latency positioning system using Ultra-Wideband (UWB) technology. The vehicle is instrumented with at least three UWB anchors to create a coordinate system. The mobile device, equipped with a UWB transceiver, performs two-way time-of-flight ranging with the anchors to determine its precise 3D position within the vehicle cabin with sub-10cm accuracy. The "inactive mode" is triggered only when two conditions are met: (1) the device's calculated position is within a predefined geometric volume corresponding to the driver's seat and immediate console area, and (2) a secondary authentication factor confirms the user is the driver. This secondary factor can be a biometric input, such as a fingerprint scan from a sensor integrated into the vehicle's ignition button or steering wheel, or an infrared facial recognition scan from a driver-facing camera. This dual-factor trigger mechanism robustly prevents false positives from passengers' devices.

sequenceDiagram
    participant Device as Mobile Device (UWB)
    participant Anchors as Vehicle UWB Anchors
    participant VCU as Vehicle Control Unit
    participant BioSensor as Biometric Sensor

    loop Ranging
        Device->>Anchors: Poll for Ranging
        Anchors-->>Device: Ranging Response (Time-of-Flight)
    end
    Device->>Device: Calculate 3D Position
    alt Position in Driver Zone
        Device->>VCU: Request Driver Authentication
        VCU->>BioSensor: Activate Sensor
        BioSensor-->>VCU: Biometric Data (e.g., fingerprint hash)
        VCU-->>Device: Authentication Token (Success/Fail)
        alt Authentication Success
            Device->>Device: Initiate Inactive Mode
        else Authentication Fail
            Device->>Device: Remain in Active Mode
        end
    else Position Outside Driver Zone
        Device->>Device: Remain in Active Mode
    end

2. AI-Powered Predictive Inactive Mode and Dynamic Message Generation

• Axis of Derivation: Integration with Emerging Tech (AI)
• Enabling Description: This derivative employs an on-device machine learning model to predict the need for an inactive mode and to dynamically generate context-aware away messages. The model is trained on user behavior patterns, calendar data, GPS history, and time of day. It can proactively suggest or automatically engage the inactive mode even before a vehicle pairing occurs, for example, when the user begins walking a route that historically precedes driving. More significantly, the away message functionality is enhanced by a local, quantized Large Language Model (LLM). When a communication is received, the LLM fuses data from the vehicle's navigation system (destination, ETA), the user's calendar, and the sender's relationship from the contact graph to generate a highly specific reply. For instance: "I am currently driving to the 'ACME Corp' meeting and am 12 minutes away. My ETA is 3:15 PM. I will respond then. If this is an emergency, reply with 'URGENT'." The system uses Natural Language Understanding (NLU) to parse incoming replies for such keywords to trigger an emergency alert to the user.

flowchart TD
    A[Incoming Communication Received] --> B{Inactive Mode Active?};
    B -->|Yes| C[Gather Context Data];
    B -->|No| Z[Provide Standard Notification];

    subgraph Context Aggregation
        C1[Navigation System: ETA, Destination]
        C2[Calendar: Current/Next Appointment]
        C3[Contacts Graph: Sender Relationship]
        C4[Message Content: NLP Analysis]
    end

    C --> C1 & C2 & C3 & C4;
    C1 & C2 & C3 & C4 --> D[On-Device LLM];
    D --> E[Generate Dynamic Away Message];
    E --> F[Transmit Message via Wireless Module];
    F --> G{Parse Incoming Reply for Urgency};
    G -->|'URGENT' Detected| H[Alert User];
    G -->|No Urgency| I[Log Communication];

3. Sterile Field Mode for Medical Devices in Surgical Theaters

• Axis of Derivation: Cross-Domain Application
• Enabling Description: The core concept is adapted for sterile environments like a surgical operating room (OR). A surgeon's or nurse's tablet/mobile device automatically enters a "Sterile Field Mode" upon entry into the OR. The trigger is the device's association with a specific medical-grade Wi-Fi network (SSID) that is geographically confined to the OR. In this mode, all standard notifications (emails, texts, non-critical app alerts) are suppressed to prevent distraction and maintain focus. The device's user interface is locked to a specific set of sanctioned applications, such as vital sign monitors, surgical checklists, or patient imaging viewers. For any incoming external communication, a server-side rule in the hospital's communication system (e.g., Microsoft Exchange) intercepts the message and sends a reply: "Dr. Smith is currently in a surgical procedure and cannot be reached. For urgent matters, please contact the OR front desk at ext. 555."

stateDiagram-v2
    [*] --> Active

    state Active {
        description Tablet has full functionality
        [*] --> Unrestricted_UI
        Unrestricted_UI --> Connected_Hospital_WiFi : Connects to general WiFi
    }

    state Sterile_Field_Mode {
        description Limited functionality, suppressed notifications
        [*] --> Restricted_UI
        Restricted_UI : Sanctioned Apps Only
        suppress_notifications: All non-critical alerts blocked
        auto_reply: Server sends "in surgery" message
    }

    Active --> Sterile_Field_Mode: Enters OR Geofence & Connects to 'OR_WiFi_SSID'
    Sterile_Field_Mode --> Active: Disconnects from 'OR_WiFi_SSID'

4. Blockchain-Based Immutable Certification Ledger for Insurance and Forensics

• Axis of Derivation: Integration with Emerging Tech (Blockchain)
• Enabling Description: This variation replaces the centralized certification server described in claims 8 and 9 of the '853 patent with a distributed ledger. When inactive mode is initiated, the mobile device constructs a data block containing the device's pseudonymous identifier, a vehicle identifier, a GPS timestamp, and a "mode_start" event flag. This block is cryptographically signed using the device's private key and submitted as a transaction to a permissioned blockchain (e.g., one based on Hyperledger Fabric). A similar "mode_end" transaction is sent upon deactivation. Authorized third parties, such as insurance providers or accident investigators, can be granted read-only access to this immutable ledger to verify the device's state at a specific time, without relying on a single, potentially fallible, central server.

sequenceDiagram
    participant Device as Mobile Device
    participant Blockchain as Permissioned Blockchain Network
    participant InsuranceCo as Insurance/Legal Entity

    Device->>Device: Initiate Inactive Mode
    Device->>Blockchain: Submit Signed Transaction (type: 'start', timestamp, deviceID, vehicleID)
    Blockchain->>Blockchain: Consensus & Add Block
    Note over Device, Blockchain: Device is now in certified inactive mode

    Device->>Device: Exit Inactive Mode
    Device->>Blockchain: Submit Signed Transaction (type: 'end', timestamp)
    Blockchain->>Blockchain: Consensus & Add Block

    Note over Blockchain, InsuranceCo: At a later time (e.g., for claim processing)
    InsuranceCo->>Blockchain: Query Ledger for deviceID and time period
    Blockchain-->>InsuranceCo: Return Immutable Record of Inactive Session

5. Graceful Degradation and Failsafe Emergency Override Mode

• Axis of Derivation: The "Inverse" or Failure Mode
• Enabling Description: This design accounts for unreliable connectivity and emergency situations. If the primary trigger connection (e.g., Bluetooth) is lost intermittently for a period below a defined threshold (e.g., 45 seconds), the system enters a "Limited Interaction Mode" rather than fully deactivating the safety feature. In this mode, the screen remains off, but it allows for hands-free, voice-activated interaction with whitelisted contacts or a navigation app. If the connection is lost for longer, the inactive mode is fully disengaged. A critical failsafe is also included: an "Emergency Override" can be triggered by a specific, hard-to-spoof voice command (e.g., a user-defined safe-phrase) or by receiving an incoming call from a pre-designated emergency contact. When triggered, the inactive mode is immediately terminated, the device volume is maximized, and GPS location data is sent via SMS to that emergency contact.

stateDiagram-v2
    state "Inactive" as Inactive
    state "Limited Interaction" as Limited
    state "Active" as Active

    [*] --> Active
    Active --> Inactive: Vehicle Paired
    Inactive --> Active: Vehicle Unpaired (>45s)

    Inactive --> Limited: Connection Lost (<45s)
    Limited --> Inactive: Connection Restored
    Limited --> Active: Connection Lost (>45s)

    Inactive --> Active: Emergency Override Triggered
    Limited --> Active: Emergency Override Triggered

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Combination Prior Art Scenarios with Open-Source Standards

1. Combination with W3C Vehicle Information Service Specification (VISS)

• Scenario: The trigger for initiating the inactive mode is not merely the establishment of a Bluetooth link, but a more intelligent determination made by subscribing to standardized vehicle data signals using the W3C VISS protocol. A web-based application on the mobile device acts as a VISS client, connecting to the vehicle's onboard server. The application subscribes to the Vehicle.Chassis.Speed and Vehicle.Cabin.Seat.Row1.Pos1.IsOccupied data paths. The inactive mode logic is programmed to engage only when Speed is greater than a threshold (e.g., 5 km/h) AND IsOccupied is true, ensuring the mode is active only when the car is moving and someone is in the driver's seat. This leverages a public, open standard to create a more robust and context-aware trigger than simple device pairing.

2. Combination with Free and Open Source Software (FOSS) Authenticator (FreeOTP)

• Scenario: This applies to the remote activation feature (e.g., for parental control). A remote server can request that a device enter inactive mode. To prevent spoofing or unauthorized activation, this request must be validated using a Time-based One-Time Password (TOTP) compliant with RFC 6238. The target mobile device runs a service that acts as a TOTP validator. The authenticating entity (e.g., a parent's phone) uses an open-source application like FreeOTP to generate a code from a shared secret. The activation command sent to the target device must include this valid TOTP. This combines the patent's remote activation concept with a well-established, open-source security standard for command authentication.

3. Combination with the Matrix Communication Protocol

• Scenario: The "away message" functionality is integrated into a decentralized, end-to-end encrypted communication network using the open Matrix protocol. Upon entering inactive mode, the user's Matrix client application (e.g., Element) automatically executes three actions: (1) it updates the user's global presence state to "Driving" with a custom status message (the selected "away message"), (2) it enables an auto-reply "bot" feature within the client that responds to any direct messages or mentions with the away message, and (3) for designated high-priority "rooms" (e.g., family chat), it mutes notifications instead of auto-replying, allowing messages to be received silently. This extends the simple SMS/email reply concept into a modern, secure, and richer communication ecosystem.