• Northwestern University, B.S. Mechanical Engineering (1979)
  • DePaul University College of Law, J.D. (1982)
  • Illinois Institute of Technology, Graduate Coursework Computer and Electrical Engineering (1990)


  • Illinois
  • Supreme Court of the United States
  • U.S. Patent and Trademark Office (USPTO)
  • U.S. District Court for the Northern District of Illinois, Trial Bar
  • U.S. Court of Appeals for the Federal Circuit
  • Illinois Supreme Court

Professional Experience

  • DePaul University College of Law
    Adjunct Professor, 1995–1997
  • United States Department of Energy
    Patent Attorney, 1985–1989


  • Spanish

Gustavo Siller


Gus Siller is the co-chair of Crowell & Moring's Technology & Intellectual Property Department. His diverse background in telecommunications, computer, electrical and mechanical engineering is invaluable to companies involved in telecommunications and internet technology, analog and digital technology, medical devices, semiconductor technology, expert systems, and software related technology. Gus has developed a particular niche helping Asian companies navigate U.S. intellectual property protection laws. He is experienced in helping companies decide when to litigate and when to settle, and in executing individualized dispute-resolution strategies for best results.

Gus is a licensed patent attorney with experience in patent prosecution and post-grant proceedings. As a litigator, he has defended clients against infringement claims by both competitors and NPEs. Gus supervises portfolios containing thousands of new patents each year, protecting innovation against infringement and leveraging it through licensing and other transactions. He works with companies from China, Japan, and Korea to identify and minimize the risks of bringing sophisticated technology to U.S. markets.

Gus achieved a favorable settlement for LG Electronics in a patent infringement action involving cellular telephone and tablets. He defended LG Philips LCD (now LF Display Co.) in an infringement action brought by several patent holding companies, which settled after Gus filed summary judgement motions. Gus achieved a favorable settlement for Power Measurement Ltd. and Power Measurement Inc. in an action alleging antitrust violations, tortious interference with a prospective business relationship in an unfair competition against General Electric Co. He also defended the Power Measurement in a 10-patent infringement action related to digital power monitoring systems brought by General Electric.

Prior to joining Crowell & Moring, Gus was the president of Brinks Gilson & Lione.


  • Leading Intellectual Property Lawyer, Leading Lawyers Network, Law Bulletin Publishing Company, 2015–2019
  • Chicago's Notable Minority Lawyer, Crain's Custom Media, 2018
  • Illinois Super Lawyers, Intellectual Property Litigation, 2005–2016


  • American Bar Association 
    Litigation Section
    Intellectual Property Law Section
  • Intellectual Property Owners Association
  • Licensing Executives Society


Admitted to practice: Illinois, U.S. Patent and Trademark Office (USPTO), U.S Supreme Court, U.S. District Court for the Northern District of Illinois Trial Bar, U.S. Court of Appeals for the Federal Circuit, Illinois Supreme Court

Representative Matters

Litigation Matters

  • Blue Spike, LLC v. Oppo Digital, Inc., Guangdong Oppo Electronics Industry Co., Ltd., C. A. No. 13-752 (E.D. Tex. filed October 8, 2013) Represented Guangdong Oppo Electronics in patent infringement action for cellular phones and tablets. Case dismissed on jurisdictional argument.
  • Codec Technologies LLC v. Coolpad Technologies Inc., C.A. No. 2:16-cv-00307 (E.D. Tex. filed March 30, 2016) Represented Coolpad Technologies in patent infringement action for cellular phones and tablets. Case favorably settled in favor of Coolpad Technologies.
  • Long Corner Consumer Electronics LLC v. Coolpad Technologies Inc., C. A. No. 2:13-cv-1004 (E. D. Tex. filed November 26, 2013) Represented Coolpad Technologies in patent infringement action for cellular phones and tablets. Case favorably settled in favor of Coolpad Technologies.
  • Shop-Vac Corp. v. Alton Industries Group Ltd. (N.D. Ill., 2013) Represented Alton Industries in patent infringement actions alleging infringement of five power tool patents. Case favorably settled in favor of Alton Industries.

Patent Portfolio Management and Licensing

  • Presently represents multibillion-dollar companies in developing and managing U.S. patent portfolios in electronics and telecommunications technology to protect the company’s intellectual property.
  • Successfully represented Japanese global electronics technology company in licensing negotiations for electrical components used in cellular phones leading to a multi-million dollar cross-licensing arrangement for the company and a third-party company.


  • "Minority Powerbrokers Q&A: Brinks' Gustavo Siller Jr." Law360 (December 8, 2014). Author: Gustavo Siller
  • "Feature Article: Leading Law Firm Rainmakers - 2010," Diversity & the Bar (November/December 2010). Author: Gustavo Siller
  • "Managing the IP "Wine Cellar"" Corporate Legal Times (November 2005). Author: Gustavo Siller
  • "Patent and Trade Secret Protection of Computer Technology Siller, et al., " Software Law Journal (April 1993). Author: Gustavo Siller

Press Coverage

Firm News & Announcements

June 29, 2022 Crowell & Moring Remembers Henry L. Brinks, Longtime Pillar of Nation’s Patent Bar
July 2, 2021 Crowell & Moring and Brinks Gilson & Lione Join Forces