Hunton Andrews Kurth LLP
Patent reexamination counsel·3 ex parte reexams
Hunton Andrews Kurth LLP has served as patent-owner counsel in 3 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents OA Defense LLC and Global Proton, LLC. 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 represented
Outcome track record
How this firm's reexams resolve once a certificate issues: all claims confirmed, amended, mixed, or canceled.
- Certificate outcome split across every bucket
- Share of proceedings where claims survived
Practice metrics
Certificate rate, average pendency, and the open/closed split across the firm's full reexam docket.
- Certificate rate of closed proceedings
- Average pendency in months
Examiners & adversaries
Which examiners most often decide this firm's reexams, and which requesters most often challenge its patents.
- Most frequent examiners
- Top opposing requesters
Recent reexaminations (3)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,817 | Dec 22, 2025 | 12,372,315 | FIREARM FRAME WITH A RELIEF | OA Defense LLC | Open |
| 90/019,832 | Jan 30, 2025 | 11,846,483 | FIREARM WITH AN AMBIDEXTROUS SLIDE STOP | OA Defense LLC | Closed |
| 90/019,271 | Oct 6, 2023 | 8,481,895 | Portable warming device and method for warming an article | Global Proton, LLC | Open |
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- Heim, Payne & Chorush, LLP36 reexams · 28 pending
- Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.34 reexams · 1 pending
- Banner & Witcoff, Ltd.34 reexams · 2 pending
See the full reexam picture for Hunton Andrews Kurth LLP
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.