Litigation Details for Allergan Holdings Unlimited Company v. Sun Pharmaceutical Industries Limited (D. Del. 2023)

Allergan Holdings Unlimited Company v. Sun Pharmaceutical Industries Limited (D. Del. 2023)

Docket		Date Filed	2023-07-24
Court	District Court, D. Delaware	Date Terminated	2024-11-26
Cause	35:271 Patent Infringement	Assigned To	Richard Gibson Andrews
Jury Demand	None	Referred To
Patents	11,484,527
Link to Docket	External link to docket

Details for Allergan Holdings Unlimited Company v. Sun Pharmaceutical Industries Limited (D. Del. 2023)

Date Filed	Document No.	Description	Snippet	Link To Document
2023-07-24				External link to document

Litigation summary and analysis for: Allergan Holdings Unlimited Company v. Sun Pharmaceutical Industries Limited (D. Del. 2023)

Last updated: July 27, 2026

Allergan v. Sun Pharmaceutical (1:23-cv-00795): Litigation summary, claims at issue, and exposure analysis

Allergan Holdings Unlimited Company v. Sun Pharmaceutical Industries Limited (D. Del., 1:23-cv-00795) is a Hatch-Waxman patent infringement dispute brought by Allergan against Sun regarding an Orange Book-listed product. The docket and the specific asserted patents and claims determine (1) whether Sun is exposed to an injunction tied to formulation, method-of-use, or manufacturing claims; (2) whether Sun can mitigate risk through design-arounds; and (3) whether the case is likely to run toward a merits-driven claim construction and non-infringement/invalidity trial or settle after an early Markman.

However, the input provided does not include the complaint, the asserted Orange Book patents, the parties’ counsel filings, claim charts, infringement/invalidity theories, procedural milestones, or any docket events. Without those case-specific details, a complete litigation summary and analysis cannot be produced.