Alternate Office
  • San Francisco
  • 1 Market Street
  • Steuart Tower, Suite 1800
  • San Francisco, CA 94105
  • TEL: +1 415 365 6700
  • FAX: +1 415 365 6699
Areas of Practice
  • Vanderbilt University Law School, J.D., 1976, Associate Editor, Vanderbilt Journal of Transactional Law
  • University of the South, B.A., 1973, cum laude, Phi Beta Kappa
Bar & Court Admissions
  • District of Columbia
  • California
  • New York
  • US Supreme Court
  • US Court of Appeal for the Second Circuit
  • US Court of Appeal for the Fourth Circuit
  • US Court of Appeal for the Ninth Circuit
  • US Court of Appeal for the Federal Circuit
  • US District Court for the Northern District of California
  • US District Court for the District of Colorado
  • US District Court for the Southern District of New York
  • US District Court for the Eastern District of New York
  • US District Court for the Western District of New York
  • US District Court for the Eastern District of Wisconsin

William G. Pecau

1330 Connecticut Avenue, NW
Washington DC 20036
TEL: +1 202 429 6244
FAX: +1 202 429 3902

Traditional Chinese 

Will Pecau, a partner in Steptoe's Washington office,  is an intellectual property litigator who has represented clients as lead trial counsel in trademark, unfair competition, false advertising, copyright, and patent cases before many federal trial and appellate courts in the United States and proceedings before the US Patent and Trademark Office (USPTO) and the International Trade Commission (ITC).  He also counsels clients in issues and transactions involving trademarks, copyrights, and software such as licensing, acquisition, and joint venture agreements. 

Mr. Pecau has been described in WTR as “a creative attorney with deep insight.” He combines imagination with the knowledge and experience he has gained through more than 35 years of practicing at the highest levels of his profession to obtain practical results congruent with his client’s business objectives. 

Mr. Pecau represented BMG in its "trailblazing," “huge victory,” “landmark ruling,” case against Cox Communications that tested an Internet service provider's responsibilities for the copyright infringing actions of its users. The jury found Cox liable for willful contributory copyright infringement and awarded $25 million in damages award. The case marks the first time an ISP has been held liable for users subscribers' piracy.

He recently defended S.K. Hynix in a case brought by SanDisk claiming massive  trade secret misappropriation that was concluded in 2015 by a confidential settlement and a product supply agreement. Other cases include representing Nokia Siemens Networks (NSN) in a trade secret action brought by Huawei Technologies to block the $1.2 billion sale of Motorola's wireless networks business to NSN.  The parties eventually negotiated a settlement allowing the sale to move forward. 

Mr. Pecau also represented Clorox in an ITC case involving its CLOROX and PINE-SOL brands and the Federation of Swiss Watch Industry before the Federal Circuit concerning the SWISS and SWISS MADE certification marks.  Other notable trademark cases include a successful trial in the Middle District of Alabama against Regions University for infringement of the Regions mark of Regions Bank and a decision of the Federal Circuit in favor of Texaco against the registration of a Clear Bottle mark by Pennzoil-Quaker State. 

Mr. Pecau has represented clients in many other prominent cases such as the defense of in a patent infringement action concerning’s “1-Click” business method patent, the defense of Microsoft and Expedia against’s "Name Your Own Price" business method patent, and the prosecution of Hewlett-Packard’s inkjet technology patent, trademark and unfair competition claims against Nu-Kote International.  Another high-profile case is the Apple Computer v. Microsoft and Hewlett-Packard case concerning Apple’s claim of infringement of its Graphical User Interface by Microsoft’s Windows and HP’s NewWave. 


  • The Legal 500 US, Intellectual Property: Trademarks: Litigation, 2017
  • Recognized as a leading trademark lawyer in World Trademark Review 1000, 2011-2016

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Selected Publications

Professional Affiliations

  • Trademark Legislation Committee, American Bar Association, 2011-present
  • Pretexting Investigations Task Force Leader, International Trademark Association, 2011-present
  • Chair of Publications Board, International Trademark Association, 1997-1999
  • Vice Chair, Publications Board, International Trademark Association, 1995-1997
  • Planning Committee, International Trademark Association, 1993-1994
  • Advisory Board, Intellectual Property Strategist Association, 1995–present
  • Association of the Bar of the City of New York
  • Board of Directors, Covenant House New York, 1989-present
  • Board of Directors, Lowell School, 2009-present