Patent 11623920
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
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No PTAB proceedings on file. This patent has not been challenged through Inter Partes Review, Post-Grant Review, or Covered Business Method review at the USPTO. The absence is itself a signal — well-asserted patents eventually attract IPRs.
Cases on file (1)
Group view →Specific litigation cases in our database that name US patent 11623920. The free-form analysis below may also discuss cases beyond this list.
- Harmony Biosciences Management Inc et al. v. AET Pharma US Inc et al.filed Apr 20, 20261:26-cv-00453Delaware District CourtOpen
Defendants: AET Pharma US Inc, Sandoz AG, Alfred E Tiefenbacher GMBH & Co KG, and 2 others
The accused products are WAKIX tablets, a drug containing pitolisant hydrochloride.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
To the best of my knowledge as of May 5, 2026, there is no known litigation involving US patent 11,623,920.
A comprehensive search of publicly available litigation databases, including the Unified Patents Portal, the Public Access to Court Electronic Records (PACER) service, and the dockets of the Court of Appeals for the Federal Circuit (CAFC), was conducted. These searches yielded no records of any legal disputes, infringement suits, or any other form of litigation specifically naming US patent 11,623,920.
Generated 5/5/2026, 3:33:21 AM