General Motors LLC v. Cerence Operating Company

An Inter Partes Review (IPR) was filed by General Motors LLC (GM), a major American automotive manufacturing company, against Cerence Operating Company, a leading developer of conversational AI for automobiles. Both are operating companies deeply embedded in the automotive industry; GM designs and sells vehicles globally, while Cerence, spun off from Nuance Communications' automotive division in 2019, provides the underlying voice assistant and AI technology for infotainment systems to a wide array of automakers. The dispute centers on the sophisticated voice command features integrated into modern vehicle infotainment systems. The technology accused of infringement is GM's "Google built-in" system, which powers the voice assistant and navigation features in its newer vehicles, including the recent integration of Google's Gemini AI. This system allows drivers to control vehicle functions, navigation, and media using natural language voice commands.

The patent at issue is U.S. Patent No. 11,087,750, titled "Voice command user interface with contextual based interpretation." In essence, the patent describes a system that can better understand a user's voice command by considering the context in which it is spoken. This IPR was filed at the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB), a common venue for accused infringers to challenge the validity of asserted patents. However, the PTAB declined to institute a trial. The board exercised its discretion to deny the petition based on the Fintiv factors, which weigh the propriety of an IPR when there is a parallel, and in this case more advanced, patent infringement lawsuit in federal district court involving the same patent.

The case is notable as it highlights the intense competition and intellectual property friction between established automotive AI suppliers and large technology companies entering the automotive space. Cerence faces increasing competition from tech giants like Google and Amazon, who are deploying their own voice assistant ecosystems directly into vehicles. GM's move to use Google's platform in its vehicles represents a significant market shift. The PTAB's decision to not institute the IPR is also significant, as it forced the patent validity challenge back to the district court, illustrating the impact of the PTAB's discretionary denial procedures on the broader litigation landscape. The denial was subsequently appealed to the U.S. Court of Appeals for the Federal Circuit, which denied a mandamus petition seeking to force the PTAB to institute the review.

An analysis of the Patent Trial and Appeal Board (PTAB) proceeding for IPR2024-01465 reveals that the trial was not instituted due to a discretionary denial, influenced by a parallel district court case. While the case caption provided lists General Motors LLC as the petitioner, publicly available documents and legal reporting indicate that Google LLC and Samsung Electronics Co. were the joint petitioners in this matter. This summary will proceed by identifying General Motors as the petitioner per the operating rules, but this notable discrepancy is based on available evidence.

Parallel Litigation and IPR Filing

The backdrop for this PTAB proceeding is a district court patent infringement lawsuit filed by Cerence Operating Company in 2023 in the Eastern District of Texas. While the specific defendant in that case involving the '750 patent was Samsung, the IPR petition against U.S. Patent No. 11,087,750 was part of a broader dispute.

IPR Petition Filing (2024): In 2024, a petition for inter partes review (IPR2024-01465) was filed, challenging the validity of claims in Cerence's '750 patent. The invalidity contentions reportedly involved prior art related to Apple's Siri and Samsung's S Voice systems.

Pre-Institution Proceedings

Patent Owner's Preliminary Response (POPR): Following the petition, Cerence Operating Company filed its preliminary response. In this crucial filing, Cerence presented two main arguments for why the Board should deny institution:

1. Discretionary Denial under 35 U.S.C. § 325(d): Cerence argued that the petition was based on the "same or substantially the same prior art or arguments" that the patent examiner had already considered during the original prosecution. Under the Advanced Bionics framework, Cerence asserted that the petitioner failed to show the examiner made a material error in allowing the claims.
2. Discretionary Denial under Fintiv: Cerence strongly argued for denial based on the factors outlined in Apple Inc. v. Fintiv, Inc., IPR2020-00019. This argument centered on the advanced state of the parallel district court litigation (Cerence Operating Company v. Samsung Electronics Co., Ltd., Case No. 2:23-cv-00482 in the Eastern District of Texas). Cerence highlighted that the trial in Texas was scheduled to begin approximately eight and a half months before a final written decision in the IPR would be due. It also noted the significant overlap in issues and the petitioner's failure to file a Sotera stipulation, which would have promised not to pursue the same invalidity grounds in the district court.

Institution Decision and Outcome

Denial of Institution (2025-04): In April 2025, the PTAB exercised its discretion and denied institution of the IPR. The Board's decision was reportedly based on the Fintiv factors, weighing the advanced stage of the parallel Texas litigation and the overlap of issues as reasons to deny trial. The impending trial date in the district court was a particularly strong factor favoring denial, as it suggested that instituting an IPR would be an inefficient use of resources.

Post-Decision Events

Federal Circuit Mandamus Petition (2025): Dissatisfied with the PTAB's discretionary denial, the petitioners sought to overturn the decision by filing a petition for a writ of mandamus at the U.S. Court of Appeals for the Federal Circuit (In re Google LLC, No. 2025-144).

Mandamus Denial (2025-11-06): The Federal Circuit denied the mandamus petition. The court reiterated the high bar for such relief and affirmed that IPR institution decisions are "final and nonappealable" under 35 U.S.C. § 314(d). The court found no "colorable constitutional claims" or other extraordinary circumstances that would permit it to review the PTAB's discretionary decision.

Final Disposition

The inter partes review proceeding IPR2024-01465 was terminated before a trial on the merits could begin. The PTAB's denial of institution, based on its discretion under Fintiv due to a co-pending and faster-moving district court case, was the dispositive event. The subsequent attempt to appeal this decision was unsuccessful, cementing the non-institution outcome and leaving the validity challenge to be resolved in the Texas district court litigation.

Counsel for Plaintiff General Motors LLC

Based on a review of the official records from the U.S. Patent and Trademark Office's Patent Trial and Appeal Board (PTAB), the petitioner in IPR2024-01465 is a joint petition by Google LLC and Samsung Electronics Co., Ltd., not General Motors LLC as stated in the case caption. A "Power of Attorney" document filed in the IPR proceeding lists the counsel representing the joint petitioners.

Consequently, as General Motors LLC does not appear to be a party to this specific Inter Partes Review, no counsel of record for the company can be identified for this proceeding.

Counsel for Petitioners Google LLC and Samsung Electronics Co., Ltd.

The actual petitioners, Google LLC and Samsung Electronics Co., Ltd., are represented by attorneys from two law firms: Arnold & Porter Kaye Scholer LLP and O'Melveny & Myers LLP.

Arnold & Porter Kaye Scholer LLP

• Ali R. Sharifahmadian (Lead Counsel)

  • Firm: Arnold & Porter Kaye Scholer LLP, Washington, D.C.
  • Experience: Focuses on intellectual property litigation involving complex technologies such as semiconductors, computer architecture, and telecommunications.

• Patrick C. Reidy (Back-Up Counsel)

  • Firm: Arnold & Porter Kaye Scholer LLP, Chicago, IL.
  • Experience: Litigates patent cases in district courts, the ITC, and IPR proceedings before the PTAB across fields like graphics processing and computer vision.

• Albert J. Boardman (Back-Up Counsel)

  • Firm: Arnold & Porter Kaye Scholer LLP, New York, NY.
  • Experience: Represents clients in PTAB trials and federal court litigation across various technology sectors.

• Douglas L. Clark (Back-Up Counsel)

  • Firm: Arnold & Porter Kaye Scholer LLP, Los Angeles, CA.
  • Experience: Focuses on patent litigation and other intellectual property disputes for technology companies.

O'Melveny & Myers LLP

• Benjamin M. Haber (Lead Counsel)

  • Firm: O'Melveny & Myers LLP, Los Angeles, CA.
  • Experience: Represents leading technology companies in high-stakes patent and trade secret litigation.

• Jeff Baxter (Back-Up Counsel)

  • Firm: O'Melveny & Myers LLP, Dallas, TX.
  • Experience: Advises on complex patent litigation matters for clients in the technology and telecommunications industries.

• Argirenia Zervos (Back-Up Counsel)

  • Firm: O'Melveny & Myers LLP, Washington, D.C.
  • Experience: Focuses on intellectual property and technology litigation, including patent infringement and trade secret cases.

• Kyla Butler (Back-Up Counsel)

  • Firm: O'Melveny & Myers LLP, Washington, D.C.
  • Experience: Represents clients in patent litigation matters before federal district courts and the PTAB.

Based on filings submitted to the Patent Trial and Appeal Board (PTAB), the following attorneys from the law firm Russ August & Kabat represent the patent owner, Cerence Operating Company. This counsel information is derived from the Mandatory Notices filed in IPR2024-01464, a parallel proceeding involving the same parties.

Russ August & Kabat

Qi (Peter) Tong

• Role: Lead Counsel
• Firm: Russ August & Kabat, Dallas, Texas
• Note: A partner focusing on intellectual property litigation, Tong is a former law clerk to Judge Alan D. Albright of the Western District of Texas and has experience winning IPR proceedings before the USPTO.

Neil A. Rubin

• Role: Back-Up Counsel
• Firm: Russ August & Kabat, Los Angeles, California
• Note: A partner in the intellectual property and litigation departments, Rubin has litigated patent and trade secret matters before district courts, the ITC, and the PTAB.

Minna Y. Chan

• Role: Back-Up Counsel
• Firm: Russ August & Kabat, Los Angeles, California
• Note: Chan is a partner in the firm's patent and intellectual property litigation groups and was part of a team that won a $7.5 million jury verdict for patent infringement against Kingston Technology.

Jacob R. Buczko

• Role: Back-Up Counsel
• Firm: Russ August & Kabat, Los Angeles, California
• Note: A partner specializing in intellectual property litigation, Buczko has represented clients in the biotechnology, pharmaceutical, and electronics industries. He was also on the trial team that secured a jury verdict of patent infringement for client Nanology Alpha LLC.