Harold Fox, Ph.D.

Harold Fox delivers sophisticated, business-driven intellectual property counsel with a focus on high-value patent strategy, with an emphasis on the life sciences industry. Recognized for his ability to develop IP protection programs that align patent and trade secret protection with clients’ commercial objectives, Harold guides companies, from Fortune Global 500 leaders to emerging startups, in developing, protecting, and leveraging their innovations to maximize market advantage. Beyond his distinguished patent prosecution experience, he designs forward-thinking strategies for IP portfolio development, navigates post-grant proceedings with precision, and engineers patent enforcement programs tailored to achieve commercial success.

Harold’s dynamic practice also encompasses managing intellectual property risks and leveraging litigation tools to meet clients’ business goals. His client roster spans established global corporations and innovative startups, reflecting his versatile strategic approach. Known for his innovative approach to product lifecycle planning and practical patent enforcement strategies, Harold delivers solutions that safeguard intellectual property assets and foster growth. His experience includes aggressive representation in PTAB proceedings and advising and counseling clients through litigation in district court, ITC Section 337 proceedings, and CAFC appeals.

Harold’s comprehensive working style has earned him recognition as a leading patent strategist from publications such as Managing Intellectual Property, IAM Patent, and LMG Life Sciences.

In addition to his client work, Harold serves as the Office Managing Partner of Honigman’s Washington, DC office.

Practice Areas

Industries

Representative Matters

• Developed and implemented patent portfolio protection strategy for key pharmaceutical product patent assets involved in over a dozen competitor and Hatch-Waxman patent litigation matters, including successfully defending multiple Inter Partes Review (IPR) validity challenges and reexaminations at the US Patent and Trademark Office, upholding validity of all patent claims through appeals.
• Created trade secret protection policies for multi-national and multi-party joint venture projects for a Korea-based chemical company working with emerging US companies.
• Conducted intellectual property due diligence and created patent portfolio development strategies for a pharmaceutical and biotechnology corporation leveraging US and China market opportunities. Projects also included settling disputes regarding theft of trade secrets and patent assets by a vendor.
• Structured and implemented intellectual property strategy for start-up pharmaceutical company from its inception, including patent litigation avoidance strategies for a 505(b)(2) product and building a patent estate with more than three dozen patents eligible for Orange Book listing.
• Designed and implemented innovation capture program for a rapidly growing renewable energy company, resulting annual application filing rate of over 50 applications per year while maintaining a technology development strategy that mitigated potential patent litigation issues.  Projects included IP positioning of the company for its IPO.
• Defended highly licensed academic patent portfolio from Inter Partes Review (IPR) challenges, resulting in key claims being found not unpatentable.

Education

Admissions

Court Admissions

Awards

• Managing Intellectual Property IP STARS
  • Recognized as a Patent Star, 2022-2025
• IAM Patent 1000, Prosecution: DC Metro Area (2013-2020, 2022-2025)
• IAM Strategy 300: The World’s Leading IP Strategists (2025)
• World Intellectual Property Review Leader (2016-2023)
• LMG Life Sciences
  • Recognized practitioner for Patent Prosecution, Patent Strategy & Management - 2022
  • Recognized practitioner for Patent Strategy Attorney of the Year – DC Metro - 2024
  • Patent Strategy Attorney of the Year – DC Metro - 2022-2024 - Shortlisted nominee
• Chambers USA, Intellectual Property: Patent Prosecution, District of Columbia (2013-2016)
• Legal 500 US, Intellectual Property: Copyright (2018)
• Legal 500 US, Intellectual Property: Trade Secrets, Litigation and Non-Contentious Matters (2016-2018)
• Legal 500 US, Intellectual Property: Patent Litigation, International Trade Commission (2016, 2018)
• Legal 500 US, Intellectual Property: Patent Litigation, Full Coverage (2016-2017)
• IAM Patent 1000, Post-Grant Procedures: National (2015-2016)
• IP Law & Business, Named one of the top 50 under 45 (2008)

News

Press Releases

Alerts