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3.31.26
Wilson Sonsini Advises Centessa on IP Matters Related to Acquisition by Lilly
On March 31, 2026, Centessa Pharmaceuticals, a clinical-stage company developing a new class of medicines for the treatment of excessive daytime sleepiness and other neurological conditions, announced a definitive agreement for Eli Lilly and Company (Lilly), an American multinational pharmaceutical company, to acquire Centessa. Under the terms of the transaction agreement, Lilly will acquire all of the issued and to be issued share capital of Centessa (including the American Depositary Shares (ADSs) representing ordinary shares) for $38.00 in cash per share plus one non-transferrable contingent value right (CVR) that entitles the holder to receive up to an aggregate of $9.00 subject to the achievement of three milestones described below, for total potential aggregate per share consideration of up to $47.00. The upfront cash consideration represents an aggregate equity value of approximately $6.3 billion and the CVR represents an additional potential aggregate equity value of approximately $1.5 billion. Wilson Sonsini Goodrich & Rosati advised Centessa in IP matters related to the transaction.
News Articles
2.12.26
2026 Chambers Global Guide Recognizes Wilson Sonsini, Attorneys
On February 12, 2026, Chambers and Partners recognized Wilson Sonsini practices and attorneys among the top global lawyers, law firms, and in-house counsel in over 200 jurisdictions in the 2026 edition of its Chambers Global guide. The listings were compiled based on confidential interviews with attorneys and law firm clients to assess firms, practice groups, and individual attorneys based on their technical legal ability, professional conduct, client service, commercial astuteness, diligence, commitment, and other valued qualities.
News Articles
1.29.26
2026 WTR 1000 Honors Wilson Sonsini’s Trademark Practice, Attorneys
Wilson Sonsini Goodrich & Rosati’s trademark and advertising practice has been ranked among the leading firms in the 2026 edition of World Trademark Review’s WTR 1000, an annual guide that showcases the top trademark professionals across key jurisdictions worldwide. The firm is recognized as a leader in both California and Washington.
Newsletters
1.08.26
Litigation Trends to Watch in 2026
Entering 2026, Wilson Sonsini litigators see a landscape defined by AI driven disputes, continued tightening of patent review standards, renewed securities and governance litigation, stronger consumer and influencer enforcement, and escalating Telephone Consumer Protection Act (TCPA) exposure—trends that require companies to align legal strategy with technical and operational controls.
Alerts
9.04.25
Inventor’s Failure to Provide Material Information to the USPTO Results in an Unenforceable Patent
On August 20, 2025, the U.S. District Court for the District of Delaware (court) found inequitable conduct when Applicant, Lindis Biotech, GMBH (Lindis), relied on data from hastily performed experiments to obtain a patent from the United States Patent and Trademark Office (USPTO), while withholding from the USPTO more thorough contradictory data.
News Articles
2.05.25
Wilson Sonsini’s Trademark Practice, Attorneys Recognized in 2025 World Trademark Review 1000
Wilson Sonsini Goodrich & Rosati’s trademark and advertising practice has been ranked in the 2025 edition of World Trademark Review’s WTR 1000, an annual guide that highlights the top trademark professionals in key jurisdictions worldwide. Wilson Sonsini is recognized as a leading firm in Washington.
Newsletters
9.27.24
Sustainability and ESG Advisory Practice Update, September 2024
We are pleased to share the September 2024 issue of Wilson Sonsini's Sustainability and ESG Advisory Practice Update. Each issue combines news, key legal developments, and resources related to sustainability and environmental, social, and governance (ESG) matters relevant to public and private companies internationally.
Newsletters
8.28.24
Sustainability and ESG Advisory Practice Update, August 2024
We are pleased to share the August 2024 issue of Wilson Sonsini’s Sustainability and ESG Advisory Practice Update. Each issue combines news, key legal developments, and resources related to sustainability and environmental, social, and governance (ESG) matters relevant to public and private companies internationally.
Alerts
8.23.24
FCC Issues Notice of Proposed Rulemaking Regarding the Use of AI-Generated Technologies for Consumer Communications
The Federal Communications Commission (FCC) recently issued a unanimous Notice of Proposed Rulemaking and Notice of Inquiry targeting the use of AI-related technologies for communicating with consumers.1 In the proposed rule, the FCC seeks to impose a broad definition for AI technologies subject to the requirements of the Telephone Consumer Protection Act (TCPA). Companies using technology falling within the FCC’s proposed definition would be required to make certain disclosures under the TCPA to notify consumers that they are communicating with AI-technology. This proposal is the latest move by the FCC to tackle its largest source of consumer complaints: unwanted and illegal robocalls and robotexts.2 The proposed new rule may require companies to modify their current approach in engaging with consumers through AI-generated calls and/or texts, including potentially altering their current practices in collecting consent where necessary.
Alerts
8.22.24
FTC Issues Final Rule Banning Fake and Misleading Consumer Reviews and Testimonials
On August 14, 2024, the Federal Trade Commission (FTC) issued a final rule that prohibits publishing or trading in fake or misleading consumer reviews and testimonials, or engaging in other related deceptive promotional tactics. Notably, under the FTC’s new rule, the commission will be authorized to seek civil penalties against violators.
News Articles
6.06.24
John Slafsky Honored as 2024 Global Leader by World Trademark Review
On June 5, 2024, the World Trademark Review named Wilson Sonsini partner John Slafsky a 2024 Global Leader in the private practice category. The WTR Global Leaders rankings draw on a three-month nomination and research process to identify the best of the best in trademark practice.
Alerts
5.07.24
Copyright Battle in 2K Games Lawsuit Comes to a Close
The case of Hayden v. 2K Games, Inc. involving a tattoo artist’s copyright battle against the gaming giant, 2K Games, was decided earlier this month.1 In 2017, tattoo artist James Hayden filed the lawsuit over 2K Games’ realistic portrayals of his tattoo designs on its popular basketball player avatars.2 Wilson Sonsini previously reported on this lawsuit here and here.