Amperex Technology Limited
Ex parte reexamination requester·1 ex parte reexams
Amperex Technology Limited has requested 1 USPTO ex parte reexamination. It most often challenges patents owned by Semiconductor Energy Laboratory Co. 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 (1)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/019,535 | Jun 12, 2024 | 11,043,660 | POSITIVE ELECTRODE ACTIVE MATERIAL INCLUDING LITHIUM COBALTATE COATED WITH LITHIUM TITANATE AND MAGNESIUM OXIDE | Semiconductor Energy Laboratory Co. Ltd. | Closed |
See the full reexam picture for Amperex Technology Limited
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.