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Following all of the latest IP developments in life sciences.


Nathaniel Schafheimer

Nathaniel Schafheimer
Nathaniel Schafheimer assists the firm in biotechnology patent prosecution. He has experience with life sciences patents, including patent drafting, prosecution, research and analysis.

Recent Posts

Targeting Indefinite Claims: Horizon Pharma, Inc. v. Dr. Reddy’s Laboratories, Inc.


Agreeing with the district court’s decision to invalidate two drug patents for indefiniteness, the Federal Circuit reasoned that two terms (“target” versus “produce”) used in the alternative in similar specification contexts were not implicitly interchangeable in meaning, affirmed a district court’s judgment that the claims were indefinite, and affirmed that conclusory, non-factual expert testimony was not persuasive either in construing the claims during a Markman hearing or in establishing an issue of fact to prevent summary judgment.

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