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About Gwilym

​Gwilym Attwell is a principal in the Delaware* office of Fish & Richardson P.C., managing the local presence of Fish’s highly regarded patent prosecution and counseling practice. Mr. Attwell’s practice is focused on U.S. and foreign patent prosecution, opinion work, due diligence studies, and client counseling in the fields of biotechnology, medical devices, and pharmaceuticals. He also assists clients in the strategic development and monetization of internal patent portfolios, patent process implementation and the assessment of third-party IP collaborations. In addition, Mr. Attwell works with clients on post-grant proceedings, including inter partes review and post-grant review petitions, and general post-grant patent strategy. He is a frequent lecturer on topics related to practice before the Patent Trial and Appeal Board.

Mr. Attwell has counseled clients ranging from startups and emerging companies to Fortune 500 corporations on biotech, chemical, pharmaceutical, and medical device patent applications. His technical experience includes vaccines, antibodies, genomics, polypeptides, small molecule inhibitors, gene therapy, diagnostics, and therapeutics. Mr. Attwell has been recognized by Intellectual Asset Management as one of “The World’s Leading Patent Practitioners” since 2012, and is described as “a life sciences whiz who is a ‘go to’ adviser on IP development and monetisation for prestigious innovators.” IAM also describes Mr. Attwell as “high skilled, yet very approachable – a great combination – and will answer a question or deal with a problem at a moment’s notice.”

Prior to his legal career, Mr. Attwell’s technical experience includes serving as a pharmacologist at Wyeth-Ayerst Research in the bone metabolism and osteoporosis research department, where he developed and implemented high-throughput screening assays to identify lead compounds and performed basic research using cell and molecular biology. He was also a research technician at the Cleveland Clinic Research Institute, where he performed research on pathogenic viruses, e.g., vesicular stomatitis virus and human parainfluenza viruses.

*Not admitted to practice in Delaware – practice in Delaware limited to federal courts and agencies listed below or otherwise authorized by law.


  • Intellectual Property: What It Is and Why You Should Care,” Fish & Richardson, P.C. (September 7, 2021)
  • “Intellectually Smart Devices: Navigating Patent Risks in the Age of Intelligent Inhalers,” Respiratory Drug Delivery Europe 2019 (May 2019)
  • Fish Obtains First PGR Reversal at Federal Circuit in Altaire Pharmaceuticals, Inc. v. Paragon Bioteck, Inc., Fish Post-Grant News (June 2018)
  • “The Myriad Appeal: Federal Circuit rules that isolated DNA sequences are patent eligible subject matter under § 101,” Lexology (August 2011)
  • “Description proscription? Ariad v. Lilly decision to be reviewed by full court,” Industrial Biotechnology (2009)
  • The Bright Side of Nuclear Winter: Opportunities in the New, New Economy,” (January 2009)
  • “Maximizing IP value in an economic downturn (& beyond) in the life science industry,” Industrial Biotechnology (2009)

Speaking Engagements

  • KnowledgeBridge: IPRs During the Pandemic: What Has Been Happening at the PTAB?Consero IP Forum for Life Sciences (December 6, 2021)
  • “IPRs During The Pandemic: What Has Been Happening At The PTAB?” Consero IP Management Forum (October 22, 2021)
  • Efficient and Effective IP Due Diligence,” Fish Patent Webinar (September 14, 2021)
  • “Maximizing your IP Due Diligence Approach and How the Deal is Structured,” Momentum’s Due Diligence for Life Sciences (August 18, 2021)
  • Designing the Deal,” Pharma Intelligence Webinar (June 9, 2021)
  • Global Patent Protection Strategies and Foreign Filing Licenses,” Fish Patent Webinar (May 2020)
  • “A View From The Trenches Of The PTAB: Strategies For Patent Owners (& Patent Applicants),” Consero 2019 Global IP Management Forum (December 2019)
  • “A View from the Tranches of the PTAB: Strategies for Patent Owners,” Consero 2019 Global IP Management Forum (June 2019)
  • “Intellectually Smart Devices: Navigating Patent Risks in the Age of Intelligent Inhalers” Respiratory Drug Delivery Europe 2019 (May 2019)
  • “Managing The Inside-Outside Counsel Working Relationship” Consero 2017 IP Forum for Life Sciences (April 2017)
  • “KnowledgeBridge: A View From The Trenches Of The Most-Active Forum For Patent Validity Challenges – The PTAB” Consero 2017 IP Forum for Life Sciences (April 2017)
  • “IP Perspectives – US and China Webinar Series: Cross-Border Patent Issues in the Life Sciences,” Fish Webinar (April 2017)
  • “Knowledge Bridge: A View From the Trenches of the Most Active Forum for Patent Validity Challenges—the PTAB,” Consero 2016 IP Forum for Life Sciences (December 2016)
  • “Biologics Litigation and IPRs,” Fish Webinar (October 2016)
  • “Three Years Post-AIA: What Have We Learned?,” Consero 2016 Global IP Management Forum (June 2016)
  • “PTAB Adjudication Process: Lessons Learned Over Three Years,” Thomas Jefferson School of Law IP Symposium: Aftershocks of the AIA’s Post-Grant Proceedings: Its Advocates & Critics (April 2016)
  • “Three Years After the AIA: What Have We Learned?,” Consero 2015 IP Forum for Pharmaceuticals and Biotechnology (December 2015)
  • “Advanced Strategies for Life Sciences Companies: IPR and FDA Regulatory Strategy,” Georgia Bio Innovation Summit (November 2015)
  • “Old Dog, New Tricks: Forward-Thinking Trends for the AIA,” Consero 2015 Global IP Management Forum (June 2015)
  • “Foreign Filing Strategies – Considerations in Protecting Your Patents Globally,” Fish Patent Webinar (February 2014)
  • “The Eternal Balancing Act: Protecting Your Global IP And Sticking To Budget,” Consero 2013 IP Pharma Summit (December 2013)
  • “Post-Grant for Practitioners Part IX: Inter Partes Review and the Life Sciences,” Fish Post-Grant Webinar (October 2013)
  • “Maximizing IP Due Diligence to Minimize Risk,” Consero 2013 Intellectual Property Management Forum (June 2013)
  • “First Inventor to File Under AIA,” Minneapolis Patents on Tap Series (March 2013)
  • “America Invents Act: Adapting to the New Rules,” Silicon Valley Life Sciences Series (March 2013)
  • “America Invents Act: Get Ready for the New Rules,” Boston Biotech Series (February 2013)

Media Mentions

  • Named an “IP Star” by Managing Intellectual Property (2013-2021)
  • “The World’s Leading Patent Practitioners” by IAM Patent 1000 (2012-2021)
  • Named Intellectual Property “Life Sciences Star” by LMG Life Sciences (2012-2013, 2015-2021)
  • Ranked in Chambers USA (2013, 2014, 2017)
  • Named a “Top Patent Prosecutor” by Patent Research Review/Patent Buddy (2011)
Focus Areas

J.D., Temple University Beasley School of Law (1997)

M.S., Zoology, Miami University, Oxford, Ohio (1992)

B.S., Neurobiology and Animal Physiology, Purdue University (1989)

  • U.S. Patent and Trademark Office 2000
  • Pennsylvania 1997
  • New Jersey
  • District of Columbia 2011
  • U.S. District Court for the Eastern District of Pennsylvania
Memberships & Affiliations

Member: BIO Pennsylvania, BIO Delaware, BIO Philadelphia Intellectual Property Association. Mr. Attwell has participated as an invited speaker at BIO-Europe (2007); Biotech PA NJ DE (2006, 2007; 2008; 2009); Temple University School of Law (2008); the University of Pennsylvania (2006, 2007, 2008), and the University of Maryland (2008). Mr. Attwell is on the programming committees for BIO 2009, Pennsylvania BIO, and Delaware BIO.

What's trending with Gwilym

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December 6th, 2021 | 8:00 am EST
Consero IP Forum for Life Sciences
Speaking Engagement
October 21st, 2021 | 12:30 pm EDT
Consero Global IP Management Forum
Speaking Engagement
October 5, 2021
LMG Life Sciences Awards Top Rankings to Fish & Richardson; 13 Principals Named 2021 “Life Sciences Stars”
Press Release
September 3, 2021
Life Sciences Entrepreneur Sourcebook | Intellectual Property: What It Is and Why You Should Care
August 18th, 2021 | 11:30 am EDT
Momentum: Due Diligence for Life Sciences
Speaking Engagement
September 14th, 2021 | 1:30 pm EDT
Webinar | Efficient and Effective IP Due Diligence
July 7, 2021
Fish & Richardson Receives Top Rankings in 2021 Edition of IAM Patent 1000: The World’s Leading Patent Professionals
June 9th, 2021 | 5:00 am EDT
Pharma Intelligence Webinar | Designing the Deal
Speaking Engagement
April 26th, 2021 | 7:45 am PDT
Life Science Washington: World IP Day 2021
Speaking Engagement
September 29, 2020
Fish & Richardson Receives Top Firm Rankings and 14 Principals Named 2020 “Life Sciences Stars” by LMG Life Sciences
Press Release
August 12, 2020
Fish & Richardson Receives Top “Gold” Ranking from IAM Patent 1000 for National Litigation Practice; National Rankings in the Plaintiff Firm and Prosecution Firm Categories
Press Release
August 4, 2020
32 Fish & Richardson Attorneys Named 2020 “IP Stars” by Managing Intellectual Property Magazine
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