May Patents Ltd.
Patent reexamination counsel·7 ex parte reexams
May Patents Ltd. has served as patent-owner counsel in 7 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents Bright Data Ltd. and Orckit Corporation. 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 (7)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/015,734 | Dec 1, 2025 | 8,830,821 | METHOD FOR SUPPORTING MPLS TRANSPORT PATH RECOVERY WITH MULTIPLE PROTECTION ENTITIES | Orckit Corporation | Open |
| 90/014,940 | Jan 12, 2022 | 11,044,346 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Closed |
| 90/014,920 | Dec 9, 2021 | 11,050,852 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Closed |
| 90/019,041 | Dec 7, 2021 | 10,491,713 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Closed |
| 90/019,025 | Oct 19, 2021 | 10,469,614 | SYSTEM AND METHOD FOR IMPROVING INTERNET COMMUNICATION BY USING INTERMEDIATE NODES | Bright Data Ltd. | Closed |
| 90/014,875 | Oct 7, 2021 | 10,257,319 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Closed |
| 90/014,876 | Oct 5, 2021 | 10,484,510 | SYSTEM PROVIDING FASTER AND MORE EFFICIENT DATA COMMUNICATION | Bright Data Ltd. | Closed |
Other reexam law firms
- Knobbe, Martens, Olson & Bear, LLP115 reexams · 24 pending
- Sterne, Kessler, Goldstein & Fox P.L.L.C.105 reexams · 34 pending
- Fish & Richardson, P.C.76 reexams · 17 pending
- Volpe Koenig54 reexams · 29 pending
- Lowenstein & Weatherwax, LLP51 reexams · 24 pending
- Nixon & Vanderhye, P.C.48 reexams · 8 pending
See the full reexam picture for May Patents Ltd.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.