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Allen & Overy LLP
1221 Avenue of the Americas
New York
NY 10020
United States

Telephone icon+1 212 610 6414
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  Paul B Keller

Partner

New York

Paul focuses on patent litigation as well as intellectual property due diligence and transactional matters. He has represented a wide range of clients in all stages of lawsuits from pre-suit investigation to final disposition of jury and bench trials and ITC investigations, including the presentation of arguments at Markman, discovery-dispute hearings, and direct and cross examination of witnesses. His notable litigation experience includes co-managing and directing the defense in a patent infringement lawsuit in the Eastern District of Texas in which, for the first time in that District’s history, a jury verdict of non-infringement and invalidity was successfully obtained.

Paul has worked on a variety of patent matters, covering a wide range of technologies including supply chain management systems, global positioning systems, electronic check processing, compression/decompression software, financial analysis software, electronic futures exchanges, simulation manufacturing modeling, on-line gift registries, digital cameras, semiconductor wafer manufacturing, game controllers, medical devices, and gypsum wall boards.

Paul also has represented a number of clients in ANDA litigation and other biologic patent litigation, including matters involving recombinant interferon-ß and recombinant erythropoietin and gene activation technology.

In addition to his litigation work, Paul has expertise in transactional IP issues, such as advising clients regarding the licensing of their intellectual property and active involvement in due diligence investigations and counseling in numerous acquisitions, potential acquisitions, and other investments.

Paul's pro bono work has included the successful representation of a group of disabled persons against one of the largest drug store chains in the country for violations of the Americans With Disabilities Act.

Professional qualifications

Admitted: United States District Courts
       Southern District of New York, 1998
       Eastern District of New York, 1998
       District of Wisconsin, 2008
       Eastern District of Texas, 2010

Admitted: Bar of the State of New York, 1998

Admitted: United States Court of Appeals – Federal Circuit, 2010

Academic qualifications

J.D., with Honors, Yeshiva University, Benjamin N. Cardozo School of Law, 1997

B.A. Economics, Fordham University, 1994

Published work

Co-Author, 'Federal Circuit Limits Equivalence Doctrine,' NY Law Jrnl., May 7, 2001, at S6

Co-Author, 'US Court Strips Authors of Online Rights,' IP Worldwide, Jan/Feb 1998, at 13

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