Gang
Patent reexamination counsel·4 ex parte reexams
Gang has served as patent-owner counsel in 4 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents Shenzhen Chitado Technology Co., Ltd Ltd., Ningfeng Peng, and Heifeng Zhizao (Shenzhen) Technology 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 represented
Outcome track record
How this firm's reexams resolve once a certificate issues: all claims confirmed, amended, mixed, or canceled.
- Certificate outcome split across every bucket
- Share of proceedings where claims survived
Practice metrics
Certificate rate, average pendency, and the open/closed split across the firm's full reexam docket.
- Certificate rate of closed proceedings
- Average pendency in months
Examiners & adversaries
Which examiners most often decide this firm's reexams, and which requesters most often challenge its patents.
- Most frequent examiners
- Top opposing requesters
Recent reexaminations (4)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,662 | Jan 16, 2026 | D1,067,126 | Electric bike frame | Shenzhen Chitado Technology Co., Ltd Ltd. | Open |
| 90/019,984 | Jun 2, 2025 | D1,050,046 | Charger plug | Ningfeng Peng | Open |
| 90/019,814 | Jan 14, 2025 | D1,031,633 | Irrigation controller | — | Closed |
| 90/019,497 | Apr 28, 2024 | D974,856 | EAR SPOON | Heifeng Zhizao (Shenzhen) Technology Co. Ltd. | Closed |
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