U.S. District Court for the Northern District of California

U.S. District Court for the Northern District of California: Patent Litigation Profile

Court Overview
The U.S. District Court for the Northern District of California (N.D. Cal.), part of the Ninth Circuit, is a key venue for patent litigation, largely due to its jurisdiction over Silicon Valley and numerous technology companies. Headquartered in San Francisco with additional courthouses in Oakland, San Jose, and Eureka, the court has consistently been among the top ten districts for new patent case filings nationally. While filings surged after the Supreme Court's 2017 TC Heartland decision on patent venue, the numbers have since moderated, with 105 new patent cases filed in 2025, ranking it 10th nationwide.

Patent Docket Reputation
The Northern District is widely regarded as a balanced, if not defendant-favorable, venue and is not considered a "rocket docket" like some other patent-heavy courts. The court has a reputation for its experienced judiciary, often with a background in complex litigation, and a willingness to decide cases on dispositive motions before trial. Reports indicate the court grants motions to dismiss based on patent ineligibility (Alice motions) at a high rate, reportedly over 70% in 2024. The district is also more likely than the national average to grant summary judgment motions on issues of infringement and invalidity. Litigants find the court amenable to motions to stay cases pending inter partes review (IPR) at the USPTO, with grant rates reportedly as high as 80-89% in recent years. Transfer motions are also granted at a rate significantly higher than the national average.

Local Rules and Procedures
The Northern District of California was the first in the nation to adopt specific local rules for patent cases in 2000, and its rules have served as a model for numerous other districts, including the Eastern District of Texas. These rules are designed to streamline litigation by requiring parties to articulate their positions early and with specificity. Key features of the Patent Local Rules include demanding early and detailed "Infringement Contentions" and "Invalidity Contentions." Subsequent revisions have added requirements for the early disclosure of "Damages Contentions," forcing parties to provide good-faith estimates and theories of damages near the start of the case to facilitate settlement discussions. These structured disclosure requirements govern the entire case, from initial scheduling through the claim construction (Markman) hearing.

Notable Cases and Rulings
The court's docket features significant technology disputes. Tracked cases include ongoing matters such as Mems Innovations LLC v. TDK Corp et al., filed in April 2026, and multi-year litigations like Intent IQ, LLC v. Yahoo Inc. and Intent IQ, LLC v. Adobe Inc., both active since late 2022. The court also handles cases involving emerging technologies, as seen in Sanas.AI Inc. v. Krisp Technologies, Inc. A notable trend in the court's jurisprudence is its rigorous application of 35 U.S.C. § 101, leading to a high rate of patent invalidations on Alice motions, a key strategic consideration for litigants.

Judges
While the provided list of tracked cases only mentions Magistrate Judge Ajay S. Krishnan, the Northern District bench includes numerous Article III judges with deep experience in patent law. Given the district's size, cases are distributed widely and it is rare for a single judge to dominate the patent docket. Judges frequently presiding over patent disputes include Chief District Judge Richard Seeborg, Judge James Donato, and Judge Beth Labson Freeman, who sits in the San Jose division and serves on the district's patent local rules committee. These judges are known for their active case management and sophisticated handling of complex technological issues.