Jeenam Park
Ex parte reexamination requester·4 ex parte reexams
Jeenam Park has requested 4 USPTO ex parte reexaminations, with 4 currently open. It most often challenges patents owned by Shenzhen Jisu Technology Co. Ltd., Guangzhou Jingcheng Electronic Technology Co. Ltd., and Wenzhou Chuyin Electronics 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 (4)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,228 | Jun 3, 2026 | D1,098,017 | Car Inverter | Guangzhou Jingcheng Electronic Technology Co. Ltd. | Open |
| 90/016,019 | Feb 28, 2026 | D1,109,423 | Cordless Hair Straightening Comb | Wenzhou Chuyin Electronics Co. Ltd. | Open |
| 90/015,509 | Sep 10, 2025 | D1,078,019 | PORTABLE FAN | Shenzhen Jisu Technology Co. Ltd. | Open |
| 90/015,429 | Aug 5, 2025 | D1,068,050 | PORTABLE FAN | Shenzhen Jisu Technology Co. Ltd. | Open |
See the full reexam picture for Jeenam Park
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.