Argentum Pharmaceuticals LLC
Ex parte reexamination requester·3 ex parte reexams
Argentum Pharmaceuticals LLC has requested 3 USPTO ex parte reexaminations. It most often challenges patents owned by Alkermes Pharma Ireland Limited, Pacira Pharmaceuticals Inc., and Research Corporation Technologies Inc.. ExamPat indexes the full prosecution record for each proceeding, including office-action grounds, certificate outcomes, and downstream PTAB and Federal Circuit decisions.
Filings by year
Top patent owners challenged
Outcome track record
How this requester's challenges resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Share of challenges that canceled claims
Challenge metrics
Cancellation rate, average pendency, and the open/closed split across every reexam this requester has filed.
- Outcome rate of closed challenges
- Average pendency in months
Examiners & defense counsel
Which examiners decide this requester's challenges, and which firms defend the targeted patents.
- Most frequent examiners
- Top opposing counsel
Recent reexaminations (3)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/019,779 | Dec 16, 2024 | 7,919,499 | NALTREXONE LONG ACTING FORMULATIONS AND METHODS OF USE | Alkermes Pharma Ireland Limited | Closed |
| 90/019,692 | Oct 3, 2024 | 11,033,495 | MANUFACTURING OF BUPIVACAINE MULTIVESICULAR LIPOSOMES | Pacira Pharmaceuticals Inc. | Closed |
| 90/013,709 | Apr 29, 2016 | RE38,551 | ANTICONVULSANT ENANTIOMERIC AMINO ACID DERIVATIVES | Research Corporation Technologies Inc. | Closed |
See the full reexam picture for Argentum Pharmaceuticals LLC
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.