Cherian Harkins Dunham, LLP
Patent reexamination counsel·7 ex parte reexams
Cherian Harkins Dunham, LLP has served as patent-owner counsel in 7 USPTO ex parte reexaminations, with 7 currently open. The firm most often represents Bright Data Ltd., Privacy Rating Ltd, and Qprivacy USA LLC. 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
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 (7)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,664 | Nov 6, 2025 | 11,816,249 | SYSTEM AND METHOD FOR DYNAMIC MANAGEMENT OF PRIVATE DATA | Privacy Rating Ltd | Open |
| 90/015,663 | Nov 6, 2025 | 11,106,824 | SYSTEM AND METHOD FOR DYNAMIC MANAGEMENT OF PRIVATE DATA | Qprivacy USA LLC | Open |
| 90/019,896 | Apr 1, 2025 | 11,816,249 | SYSTEM AND METHOD FOR DYNAMIC MANAGEMENT OF PRIVATE DATA | Oprivacy USA LLC | Open |
| 90/014,880 | Oct 9, 2021 | 10,469,614 | System and method for improving Internet communication by using intermediate nodes | Bright Data Ltd. | Open |
| 90/014,827 | Aug 11, 2021 | 10,484,511 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Open |
| 90/014,652 | Jan 12, 2021 | 10,637,968 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Web Spark Ltd. | Open |
| 90/014,624 | Dec 4, 2020 | 10,484,511 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Open |
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