Kirby Drake Law, PLLC
Patent reexamination counsel·5 ex parte reexams
Kirby Drake Law, PLLC has served as patent-owner counsel in 5 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents SB IP Holdings LLC and Zinser, Duke. 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 (5)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/019,741 | Nov 25, 2024 | 10,674,120 | COMMUNICATION AND MONITORING SYSTEM | SB IP Holdings LLC | Closed |
| 90/019,742 | Nov 25, 2024 | 9,485,478 | Communication and Monitoring System | SB IP Holdings LLC | Closed |
| 90/019,542 | Aug 15, 2024 | 7,583,191 | SECURITY SYSTEM AND METHOD FOR USE OF SAME | Zinser, Duke | Closed |
| 90/019,359 | Dec 30, 2023 | 8,154,581 | AUDIO-VIDEO COMMUNICATION SYSTEM FOR RECEIVING PERSON AT ENTRANCE | SB IP Holdings LLC | Open |
| 90/019,346 | Dec 20, 2023 | 8,139,098 | VIDEO COMMUNICATION METHOD FOR RECEIVING PERSON AT ENTRANCE | SB IP Holdings LLC | Closed |
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