Coretronic Corporation
Ex parte reexamination requester·3 ex parte reexams
Coretronic Corporation has requested 3 USPTO ex parte reexaminations, with 3 currently open. It most often challenges patents owned by Maxell, Ltd.. 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 |
|---|---|---|---|---|---|
| 90/016,310 | May 19, 2026 | 9,322,530 | LIGHT SOURCE DEVICE | Maxell, Ltd. | Open |
| 90/016,203 | Apr 21, 2026 | 8,593,580 | PROJECTION-TYPE DISPLAY APPARATUS | Maxell, Ltd. | Open |
| 90/015,879 | Jan 12, 2026 | 9,547,226 | LIGHT SOURCE DEVICE AND PROJECTION-TYPE IMAGE DISPLAY DEVICE | Maxell, Ltd. | Open |
See the full reexam picture for Coretronic Corporation
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.