FacultyFaculty/Author Profile
Karen Mangasarian

Karen Mangasarian

Foley & Lardner LLP

New York, NY, USA

Karen works with life sciences clients to procure worldwide patent rights and develop competitive patent strategies. She advises clients in all aspects of patent portfolio management, including strategic planning and licensing, and product life cycle management. She performs infringement, validity, patentability and freedom-to-operate analyses. Karen also has extensive experience in interferences, re-examinations, oppositions and litigation. She counsels clients across a wide range of technology areas in life sciences including small molecule pharmaceuticals, pharmaceutical formulations, biologics, diagnostic and therapeutic methods in molecular and cellular biology, immunology, microbiology, biochemistry, genomics and computational biology.

 Prior to starting her legal career, Karen was an academic research scientist having received a Ph.D. in Pharmacology from the University of Wisconsin-Madison, where she studied the regulation of c-myc oncogene expression in HL-60 cells by vitamin D. As a post-doctoral fellow in Microbiology at NYU Medical Center, she studied the effect of amino acid deprivation on asparagine synthetase expression and characterized the transmembrane domains of FGFR-2 and FGFR-3.

 Representative Clients and Matters:

  • Participated in various U.S. interferences, oppositions and litigations.
  • Representative interferences include: tumor necrosis factor ligand (TWEAK); bone morphogenic proteins; transgenic fibrinogen.
  • Representative oppositions include: HIV protease inhibitors (EPO, Israel, India); IL-1 Inhibitor (EPO); bone morphogenic proteins (EPO).
  • Representative litigations include: Massachusetts Eye & Ear Infirmary v. QLT, Inc. (D. Mass); Massachusetts Eye & Ear Infirmary v. Novartis Ophthalmics (D. Mass).



  • JD, magna cum laude, New York Law School, 2000
  • PhD (Pharmacology), University of Wisconsin-Madison, 1992
  • BS (Biochemistry), University of Wisconsin-Madison, 1984


 Bar Admissions

  • New York
  • U.S. Patent and Trademark Office



  • U.S. Court of Appeals for the Federal Circuit
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the Southern District of New York


 Memberships & Affiliations

  • New York Intellectual Property Law Association
  • American Intellectual Property Law Association



  • "Considerations For Post-KSR Biotech/Pharma Patent Prosecution," American Conference Institute, New York, NY (February 25-26, 2008)
  • "International Considerations In Freedom To Operate: U.S. and E.U. Perspectives," American Conference Institute, San Francisco, CA (October 24-25, 2005)
  • "International Concerns In Freedom To Operate Determinations," American Conference Institute, New York, NY (March 14-15, 2005)
Karen Mangasarian is associated with the following items:
Web Segment  Web Segment Patent Overview, Part 1 - Understanding Patent Law 2017, Thursday, June 22, 2017
CHB Chapters  CHB Chapters Patent Prosecution Basics 2017 - Understanding Patent Law 2017, Thursday, June 22, 2017
MP3 Audio  MP3 Audio Patent Overview, Part 1 - Patent Overview, Part 1, Thursday, June 22, 2017
Transcripts  Transcripts Patent Overview, Part 1 - Patent Overview, Part 1, Thursday, June 22, 2017
MP4 - Mobile Video Seg  MP4 - Mobile Video Seg Patent Overview, Part 1 - Patent Overview, Part 1, Thursday, June 22, 2017
On-Demand Web Programs  On-Demand Web Programs Understanding Patent Law 2017, Saturday, June 24, 2017, New York, NY

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