Eric Drennan
Ex parte reexamination requester·3 ex parte reexams
Eric Drennan has requested 3 USPTO ex parte reexaminations, with 3 currently open. It most often challenges patents owned by Adeia Guides Inc., Comcast Cable Communications LLC, and Veveo Inc.. 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 challenged
Outcome track record
How this requester's challenges resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Share of challenges that canceled claims
Challenge metrics
Cancellation rate, average pendency, and the open/closed split across every reexam this requester has filed.
- Outcome rate of closed challenges
- Average pendency in months
Examiners & defense counsel
Which examiners decide this requester's challenges, and which firms defend the targeted patents.
- Most frequent examiners
- Top opposing counsel
Recent reexaminations (3)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,116 | Apr 1, 2026 | 9,223,873 | METHOD AND SYSTEM FOR INCREMENTALLY SELECTING AND PROVIDING RELEVANT SEARCH ENGINES IN RESPONSE TO A USER QUERY | Adeia Guides Inc. | Open |
| 90/015,979 | Feb 19, 2026 | 10,931,992 | CUSTOMIZED OPTIONS FOR CONSUMPTION OF CONTENT | Comcast Cable Communications LLC | Open |
| 90/015,868 | Jan 8, 2026 | 8,375,069 | USER INTERFACE METHODS AND SYSTEMS FOR SELECTING AND PRESENTING CONTENT BASED ON USER NAVIGATION AND SELECTION ACTIONS ASSOCIATED WITH THE CONTENT | Veveo Inc. | Open |
See the full reexam picture for Eric Drennan
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.