Hans R. Troesch provides comprehensive strategic counsel to clients ranging from individual inventors and startups to large public companies. He guides clients in patent portfolio development and intellectual property strategy with a view to building value. Hans manages the preparation and prosecution of patent applications, focusing on computer-implemented inventions and specifically on machine learning, system architecture, and web 3.0 technologies.

Hans manages portfolios of patents and patent applications, helps clients identify patentable inventions, prepares and supervises the preparation and prosecution of patent applications both in the U.S. and internationally, and develops strategies for building commercially valuable patent portfolios. He also advises clients on the use of third-party challenges to patents in the U.S. Patent and Trademark Office, including reexamination, inter partes review, and post-grant review. Clients also rely on Hans for opinions on infringement and validity of patents; IP due diligence in connection with mergers and acquisitions; litigation and licensing of patents, copyrights, and trade secrets; and technology transfers.

His insightful counsel is based on 40 years' experience as an IP attorney, including nearly 30 years focusing on patent practice, with further experience as an IP litigation partner, and as a business lawyer advising clients on copyright, trade secrets, and licensing issues.

Hans’s practice covers a wide range of computer-related technologies. He has substantial patent experience in:

  • Distributed system and network architectures
  • Internet and client-server systems
  • Machine learning, machine translation, and natural language processing
  • Image processing
  • Mobile services
  • Social networks
  • Blockchain

Hans joined Fish & Richardson as a founding partner of the firm’s Silicon Valley office in 1993. He is a senior principal and former managing principal of the office. His prior experience includes work as a programmer, systems analyst, manager, and consultant.