FacultyFaculty/Author Profile
Jay P. Lessler

Jay P. Lessler

Blank Rome LLP

New York City, NY, USA


Jay Lessler concentrates his practice in domestic and foreign patent procurement, client counseling and patent litigation, primarily in the chemical, pharmaceutical, and computer software arts.

Working closely with inventors and in-house counsel, Mr. Lessler devises effective strategies to build and protect intellectual property assets, from initial drafting of patent applications to post-grant proceedings.

His experience includes:

  • reissue
  • reexamination and patent term extension proceedings
  • domestic and foreign patent portfolios
  • conducting due diligence investigations and validity and freedom-to-operate studies
  • counseling clients in connection with the Hatch-Waxman Act and the Biologics Price Competition and Innovation Act preparation of Paragraph IV Notice letters and Offers for Confidential Access pursuant to the Hatch-Waxman Act

Mr. Lessler also has significant ANDA and biotech litigation experience.

His recent representations include:
  • Ascio Pharmaceuticals, Inc. v. Three Rivers Pharmaceuticals, LLC (D. Ga., Civ. No. 1:10-cv-1583)
  • Schering Corp., et al. v. Glenmark Pharmaceuticals, Inc. USA, et al. (D.N.J., Civ. No. 2:07-cv-01334)


Mr. Lessler has been the co-chair of Practising Law Institute’s (PLI’s) annual Advanced Patent Prosecution Workshop since 2006. He was also a speaker at PLI’s Patent Boot Camp Workshop from 2002 to 2006.
Jay P. Lessler is associated with the following items:
Course Handbooks  Course Handbooks Advanced Patent Prosecution Workshop 2012: Claim Drafting & Amendment Writing
Advanced Patent Prosecution Workshop 2013: Claim Drafting & Amendment Writing
CHB Chapters  CHB Chapters Drafting Claims for Chemical and Pharmaceutical Patent Applications - Advanced Patent Prosecution Workshop 2012: Claim Drafting & Amendment Writing , Thursday, July 19, 2012
Drafting Claims for Chemical and Pharmaceutical Patent Applications - Advanced Patent Prosecution Workshop 2013: Claim Drafting & Amendment Writing , Thursday, July 18, 2013
Live Seminar  Live Seminar Advanced Patent Prosecution Workshop 2014: Claim Drafting & Amendment Writing , Thursday, July 17, 2014 , New York, NY
Advanced Patent Prosecution Workshop 2013: Claim Drafting & Amendment Writing , Thursday, July 18, 2013 , New York, NY
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