Headwater Research
Patent owner in reexamination·4 ex parte reexams
Headwater Research's patents have been the subject of 4 USPTO ex parte reexaminations, with 3 currently open. Its patents are most often challenged by Google 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 (4)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/019,968 | May 21, 2025 | 9,215,613 | WIRELESS END-USER DEVICE WITH DIFFERENTIAL TRAFFIC CONTROL POLICY LIST HAVING LIMITED USER CONTROL | — | Open |
| 90/019,892 | Mar 31, 2025 | 8,589,541 | DEVICE-ASSISTED SERVICES FOR PROTECTING NETWORK CAPACITY | Google LLC | Open |
| 90/019,753 | Dec 3, 2024 | 9,198,117 | Network System With Common Secure Wireless Message Service Serving Multiple Applications on Multiple Wireless Devices | — | Open |
| 90/019,610 | Aug 5, 2024 | 9,143,976 | Wireless end-user device with differentiated network access and access status for background and foreground device applications | — | Closed |
See the full reexam picture for Headwater Research
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.