Cameron International Corporation
Patent owner in reexamination·5 ex parte reexams
Cameron International Corporation's patents have been the subject of 5 USPTO ex parte reexaminations, with 3 currently open. Its patents are most often challenged by Cactus Wellhead, 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 requesters
Outcome track record
How reexams of this owner's patents resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Claim-survival rate
Defense metrics
Claim-survival rate, average pendency, and the open/closed split across every reexam of this owner's patents.
- Survival rate of closed proceedings
- Average pendency in months
Challengers & examiners
Which requesters most often challenge this owner's patents, and which examiners decide them.
- Top requesters
- Most frequent examiners
Recent reexaminations (5)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/015,433 | Aug 6, 2025 | 10,385,662 | WELL FRACTURING MANIFOLD APPARATUS | Cactus Wellhead, LLC | Closed |
| 90/015,357 | Jun 30, 2025 | 10,094,195 | FRACTURING FLUID DISTRIBUTION SYSTEMS AND METHODS | Cactus Wellhead, LLC | Closed |
| 90/019,957 | May 14, 2025 | 10,787,879 | FRACTURING FLUID DELIVERY SYSTEM | Cactus Wellhead, LLC | Open |
| 90/019,937 | Apr 29, 2025 | 11,162,320 | FRACTURING FLUID DELIVERY SYSTEM | Cactus Wellhead, LLC | Open |
| 90/019,819 | Jan 17, 2025 | 9,932,800 | FRACTURING MANIFOLD SYSTEMS AND METHODS | Cactus Wellhead, LLC | Open |
See the full reexam picture for Cameron International Corporation
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.