Ernest D. Buff
Patent reexamination counsel·5 ex parte reexams
Ernest D. Buff has served as patent-owner counsel in 5 USPTO ex parte reexaminations, with 1 currently open. The firm most often represents Wag Acquisition 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
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 |
|---|---|---|---|---|---|
| 90/014,836 | Aug 25, 2021 | 8,364,839 | STREAMING MEDIA DELIVERY SYSTEM | Wag Acquisition LLC | Closed |
| 90/014,835 | Aug 25, 2021 | 8,185,611 | Streaming Media Delivery System | Wag Acquisition LLC | Closed |
| 90/014,833 | Aug 25, 2021 | 8,327,011 | STREAMING MEDIA BUFFERING SYSTEM | Wag Acquisition LLC | Open |
| 90/014,834 | Aug 25, 2021 | 8,122,141 | STREAMING MEDIA BUFFERING SYSTEM | Wag Acquisition LLC | Closed |
| 90/013,486 | Apr 10, 2015 | 8,418,852 | COMPARTMENTALIZED PROTECTIVE CASE FOR PORTABLE HANDHELD ELECTRONIC DEVICES | — | Closed |
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