Patent 12447128
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
Active provider: Google · gemini-2.5-flash
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 12447128. The free-form analysis below may also discuss cases beyond this list.
- Astellas US LLC et al. v. Dr Reddys Laboratories Ltdfiled Apr 17, 20263:26-cv-04101New Jersey District CourtOpen
Defendants: Dr Reddys Laboratories Ltd
Other patents asserted: 12161628, 12502357, 11839689
The accused products are generic versions of Xtandi 40 mg and 80 mg tablets.
Litigation summary
Past and pending lawsuits — plaintiffs, defendants, jurisdictions, outcomes, and notable rulings.
My search for litigation specifically involving US patent 12447128 did not yield any direct results detailing known lawsuits, plaintiffs, defendants, jurisdictions, case numbers, filing dates, or outcomes. While the Google Patents page for US12447128B2 indicates "Family has litigation" and links to Darts-ip, I cannot directly access specific case details via that link.
The search results did indicate that the current assignees, Astellas Pharma Inc. and Medivation Prostate Therapeutics LLC, are involved in various patent litigations concerning other patent numbers related to their products, such as Xtandi® (enzalutamide) and Myrbetriq® (mirabegron). However, none of these specifically list US patent 12447128 as being litigated. For example:
- Astellas Pharma Inc. and Medivation Prostate Therapeutics LLC are plaintiffs in cases involving US Patent No. 7,709,517 and US Patent No. 12,066,689.
- Astellas Pharma Inc. is involved in litigation concerning Myrbetriq® patents, including US10842780, US11707451, US12059409, and US12097189.
Therefore, based on the conducted search, no specific litigation involving US patent 12447128 has been identified.
Generated 5/31/2026, 6:45:53 AM