John Rizvi, P.A.
Patent reexamination counsel·5 ex parte reexams
John Rizvi, P.A. has served as patent-owner counsel in 5 USPTO ex parte reexaminations, with 2 currently open. The firm most often represents Spriv LLC, Arjuna Natural Private Limited, and Benny Antony. 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 (5)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,838 | Dec 29, 2025 | 11,354,667 | Method for Internet User Authentication | Spriv LLC | Open |
| 90/015,837 | Dec 29, 2025 | 9,033,225 | METHOD AND SYSTEM FOR AUTHENTICATING INTERNET USERS | Spriv LLC | Open |
| 90/014,650 | Mar 11, 2021 | 10,548,932 | MEDICINAL COMPOSITION OF AMARANTH EXTRACT ORIGIN HAVING ENRICHED NITRATE CONTENT AND A METHOD OF PREPARING THE SAME | Arjuna Natural Private Limited | Closed |
| 90/014,480 | Mar 24, 2020 | 10,383,903 | MEDICINAL COMPOSITION OF AMARANTH EXTRACT ORIGIN HAVING ENRICHED NITRATE CONTENT AND A METHOD OF PREPARING THE SAME | Benny Antony | Closed |
| 90/014,451 | Feb 14, 2020 | 10,548,932 | A MEDICINAL COMPOSITION OF AMARANTH EXTRACT ORIGIN HAVING ENRICHED NITRATE CONTENT AND A METHOD OF PREPARING THE SAME | Arjuna Natural Private Linited | Closed |
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