Panasonic Semiconductor Solutions Co. Ltd.
Patent owner in reexamination·2 ex parte reexams
Panasonic Semiconductor Solutions Co. Ltd.'s patents have been the subject of 2 USPTO ex parte reexaminations, with 2 currently open. 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
225
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 (2)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/015,691 | Nov 19, 2025 | 7,923,764 | SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING THE SAME | — | Open |
| 90/015,690 | Nov 14, 2025 | 8,587,076 | SEMICONDUCTOR DEVICE | — | Open |
See the full reexam picture for Panasonic Semiconductor Solutions Co. Ltd.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.