Unified Patents LLC v. Dialect LLC

Case Overview and Background: Unified Patents LLC v. Dialect LLC, IPR2025-01193

This Inter Partes Review (IPR) at the Patent Trial and Appeal Board (PTAB) involves petitioner Unified Patents LLC challenging patent 7917367 owned by Dialect LLC. Unified Patents LLC is a member-based organization focused on deterring "patent trolls" or Non-Practicing Entities (NPEs) by improving patent quality and reducing unsubstantiated patent assertions in specific technology sectors, often by filing IPRs against patents owned by NPEs. Dialect LLC, on the other hand, is identified as a patent assertion entity (NPE) that monetizes intellectual property, particularly in the domain of natural language processing and conversational AI.

The patent at issue, U.S. Patent No. 7,917,367, is titled "Mobile systems and methods for responding to natural language speech utterance." It generally relates to technology for mobile systems that can process and respond to natural language speech queries. While the IPR itself directly challenges the validity of this patent, Dialect LLC has a history of asserting its portfolio of patents, often related to natural language processing and speech recognition, against major technology companies. For instance, Dialect has initiated infringement lawsuits against entities like Meta Platforms, Google, Amazon, Microsoft, Samsung, Comcast, Salesforce, and Bank of America, often targeting their AI voice assistant products and integrated product ecosystems (hardware and software). This IPR by Unified Patents likely arose in response to or in anticipation of such assertions, aiming to invalidate the patent to protect the broader industry.

The case, IPR2025-01193, was filed at the Patent Trial and Appeal Board, a body within the United States Patent and Trademark Office (USPTO) that conducts trials regarding patent validity. The PTAB provides an administrative forum for challenging the patentability of claims in an issued patent, which can be a faster and less expensive alternative to district court litigation. The case has reached a "Settlement" status. The notability of this case lies in Unified Patents' ongoing strategy to combat NPE litigation, specifically targeting Dialect LLC, a prolific NPE in the high-tech space, particularly concerning AI and natural language processing technologies. Such challenges by Unified Patents aim to raise the costs for NPEs asserting potentially invalid patents and to deter future assertions, contributing to a broader effort to improve patent quality and reduce frivolous litigation in technology sectors.## Case Overview and Background: Unified Patents LLC v. Dialect LLC, IPR2025-01193

This Inter Partes Review (IPR) at the Patent Trial and Appeal Board (PTAB) involves petitioner Unified Patents LLC challenging patent 7917367 owned by Dialect LLC. Unified Patents LLC is a member-based organization dedicated to deterring "patent trolls," also known as Non-Practicing Entities (NPEs), by proactively challenging the validity of patents they assert or are likely to assert. Their aim is to improve patent quality and reduce the burden of unsubstantiated patent assertions on operating companies within specific technology areas. Conversely, Dialect LLC is a patent assertion entity (NPE) focused on monetizing intellectual property, particularly in natural language processing and conversational AI. They acquire and assert foundational patents, primarily in speech and voice recognition technology, against major tech companies.

The patent challenged in this IPR is U.S. Patent No. 7,917,367, titled "Mobile systems and methods for responding to natural language speech utterance." This patent broadly covers technology related to mobile systems designed to interpret, process, and respond to spoken natural language queries. While an IPR directly challenges the validity of the patent claims, Dialect LLC has a documented history of asserting patents from its portfolio, often related to natural language processing and AI voice technology, against prominent companies such as Meta Platforms, Google, Amazon, Microsoft, Samsung, Comcast, Salesforce, and Bank of America in district court infringement actions. The accused technologies in those parallel cases typically include modern AI voice assistants and integrated product ecosystems incorporating speech and natural language processing.

The procedural posture of this case is an IPR filed at the Patent Trial and Appeal Board, a specialized administrative court within the USPTO responsible for conducting trials concerning patentability. The PTAB offers an alternative forum to district courts for challenging patent validity, often providing a more streamlined and cost-effective process. The case has reached a "Settlement" status, indicating that the parties have resolved their dispute outside of a full PTAB trial. This IPR is notable because it exemplifies Unified Patents' strategic efforts to counter NPE assertion campaigns by challenging patents that are actively being litigated or could be used to assert against various operating companies in the burgeoning AI and natural language processing market. By targeting Dialect LLC's patents, Unified Patents aims to mitigate patent litigation risk for its members and the broader industry by invalidating what it perceives as low-quality patents.

Unified Patents LLC v. Dialect LLC: Parallel PTAB and District Court Settlement

The case record primarily details an Inter Partes Review (IPR) proceeding, IPR2025-01193, before the Patent Trial and Appeal Board (PTAB) concerning U.S. Patent No. 7,917,367, and a related patent infringement lawsuit in district court. While the case caption provided identifies Unified Patents LLC as the plaintiff for the IPR, the official records indicate that Microsoft Corporation was the petitioner in IPR2025-01193 against Dialect LLC. Unified Patents LLC is known for its role in challenging patents asserted by Non-Practicing Entities (NPEs) and has been involved in other IPRs and reexamination proceedings against Dialect on different patents. However, for IPR2025-01193, Microsoft Corporation was the named petitioner.

This IPR and a parallel district court litigation, Dialect, LLC v. Microsoft Corp., Case No. 2:24-cv-01067, in the U.S. District Court for the Eastern District of Texas, both concluded in settlement.

Key Legal Developments and Outcome:

Parallel PTAB IPR Proceedings:

• IPR Filing: On July 21, 2025, Microsoft Corporation filed IPR2025-01193 against Dialect LLC, challenging U.S. Patent No. 7,917,367.
• Settlement and Termination: The IPR proceeding was terminated via settlement on January 5, 2026. As a result of the settlement, no claims of U.S. Patent No. 7,917,367 were formally invalidated or sustained by a Final Written Decision from the PTAB, meaning the patent's claims remain untested by a full PTAB trial decision.

Parallel District Court Litigation:

• Complaint Filing: On December 20, 2024, Dialect, LLC filed a patent infringement lawsuit against Microsoft Corporation in the U.S. District Court for the Eastern District of Texas, Case No. 2:24-cv-01067. U.S. Patent No. 7,917,367 was among the patents asserted in this litigation.
• Notice of Settlement and Stay: On November 4, 2025, Dialect LLC and Microsoft Corporation filed a Joint Motion to Stay All Deadlines and Notice of Settlement with the district court. The parties informed the court they had reached a resolution in principle for all matters in controversy and requested a 29-day stay (through December 3, 2025) to finalize their settlement agreement and submit dismissal papers. The court granted this motion, staying all unreached deadlines.
• Final Disposition: The district court case, Dialect, LLC v. Microsoft Corporation, was subsequently closed on December 5, 2025, following the settlement between the parties.

In summary, both the IPR proceeding at the PTAB (IPR2025-01193) and the parallel district court litigation (Dialect, LLC v. Microsoft Corp., Case No. 2:24-cv-01067) concerning U.S. Patent No. 7,917,367 were resolved through settlement agreements between Dialect LLC and Microsoft Corporation in late 2025 and early 2026. The IPR termination means the patent's validity was not definitively ruled upon by the PTAB.

Unified Patents LLC typically utilizes a combination of in-house counsel and specialized outside counsel for its Inter Partes Review (IPR) proceedings. Based on filings in similar IPR cases and information from Unified Patents itself, the following attorneys are likely to have represented the plaintiff, Unified Patents LLC:

In-House Counsel (Unified Patents LLC, Chevy Chase, MD / Washington, DC):

• Roshan Mansinghani
  • Role: Assistant General Counsel / Legal Head - NPE (Non-Practicing Entity) / Head of Operations.
  • Firm: Unified Patents LLC, Chevy Chase, MD / Washington, DC.
  • Experience Note: Oversees Unified Patents' legal department, develops core legal strategies for deterrence of unsubstantiated patent assertions, and has participated in numerous post-grant proceedings before the USPTO. He also has extensive experience in patent litigation and trials, and previously practiced at Baker Botts L.L.P.
• Jordan M. Rossen
  • Role: Senior Patent Counsel.
  • Firm: Unified Patents LLC, Chevy Chase, MD / Washington, DC.
  • Experience Note: An experienced intellectual property litigator with over nine years of experience, representing clients before the PTAB, ITC, district courts, and the Federal Circuit in various technology fields. He was also involved as in-house counsel in a Central Reexamination Unit (CRU) proceeding against WirelessWerx IP LLC.
• Kelly R. Hughes
  • Role: Senior Patent Counsel.
  • Firm: Unified Patents LLC, Washington, DC (also associated with Erise IP, P.A. for PTAB filings).
  • Experience Note: Supports Unified Patents' Patent Trial and Appeal Board (PTAB) practice and appellate practice. She previously focused on patent litigations and PTAB practice at Erise IP.
• Jonathan Stroud
  • Role: COO & CLO (Chief Legal Officer) / Chief IP Counsel.
  • Firm: Unified Patents LLC.
  • Experience Note: As Chief IP Counsel, he is deeply involved in Unified Patents' strategy and has represented Unified Patents in various IPR proceedings and related appeals.
• Andrea Shoffstall
  • Role: Senior Patent Counsel.
  • Firm: Unified Patents LLC.
  • Experience Note: Represented Unified Patents as in-house counsel in an ex parte reexamination proceeding against another patent owned by Dialect, LLC.
• Jessica L.A. Marks
  • Role: SEP & Foreign Managing Counsel.
  • Firm: Unified Patents LLC.
  • Experience Note: Represented Unified Patents as in-house counsel in an ex parte reexamination proceeding against another patent owned by Dialect, LLC.

Outside Counsel (Erise IP, P.A., Overland Park, Kansas / Greenwood Village, Colorado):

• Jason R. Mudd
  • Role: Lead Counsel (for IPR2021-01260, a similar Unified Patents IPR).
  • Firm: Erise IP, P.A., Overland Park, Kansas.
  • Experience Note: Regularly represents petitioners in IPR proceedings, as evidenced by his designation as lead counsel for Unified Patents in other IPRs.
• Eric A. Buresh
  • Role: Back-Up Counsel (for IPR2021-01260).
  • Firm: Erise IP, P.A., Overland Park, Kansas / Greenwood Village, Colorado.
  • Experience Note: Appears as counsel for Unified Patents in IPR proceedings.

Please note that a direct docket entry for IPR2025-01193 specifically listing counsel was not found through web searches. The above list is compiled based on the typical representation of Unified Patents in their IPR challenges and related appellate proceedings, as indicated in publicly available documents and news.

The counsel of record representing Dialect LLC in IPR2025-01193, Unified Patents LLC v. Dialect LLC, cannot be definitively identified from the available public search results. While the case concerned patent 7917367 and was terminated via settlement, specific docket entries detailing the appearance of counsel for Dialect LLC in this particular Inter Partes Review were not found.

General searches for Dialect LLC's legal representation in other related patent matters reveal:

• In various district court cases, such as Dialect, LLC v. Meta Platforms, Inc. (7:25-cv-00060, W.D. Tex.), Dialect LLC was represented by attorneys from Cherry Johnson Siegmund James PLLC and Blue Peak Law Group, LLP. These firms include individuals such as William D. Ellerman, Mark D. Siegmund, Shuya Yang (Cherry Johnson Siegmund James PLLC), Robert Stephen Magee, Heng Gong, Garland T. Stephens, Kate M. Falkenstien, Justin Lile Constant, and Richard M. Koehl (Blue Peak Law Group LLP).
• In other PTAB proceedings where Google LLC was the petitioner against Dialect LLC (e.g., IPR2024-00753), Cooley LLP represented the petitioner (Google LLC), but the counsel for Dialect LLC (the Patent Owner) was not explicitly stated in the snippet, although a "correspondence address of record with the USPTO as follows: 174899 - The Law Offices of David A. Gerasimow, P.C. 211 W. Wacker Dr. Ste. 1717 Chicago, IL 60606" was mentioned for service upon the Patent Owner. This does not confirm them as counsel of record for IPR2025-01193, however.

Without direct access to the PTAB E2E docket for IPR2025-01193, it is not possible to provide the specific counsel of record for Dialect LLC in this settled IPR proceeding.