Emily C. O'Brien
Ex parte reexamination requester·3 ex parte reexams
Emily C. O'Brien has requested 3 USPTO ex parte reexaminations. It most often challenges patents owned by Hudson Bay Master Fund Ltd. and Lycos 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 |
|---|---|---|---|---|---|
| 90/012,791 | Feb 8, 2013 | 6,775,664 | INFORMATION FILTER SYSTEM AND METHOD FOR INTEGRATED CONTENT-BASED AND COLLABORATIVE/ADAPTIVE FEEDBACK QUERIES | Hudson Bay Master Fund Ltd. | Closed |
| 90/012,722 | Nov 28, 2012 | 6,775,664 | INFORMATION FILTER SYSTEM AND METHOD FOR INTEGRATED CONTENT-BASED AND COLLABORATIVE/ADAPTIVE FEEDBACK QUERIES | Hudson Bay Master Fund Ltd. | Closed |
| 90/009,991 | May 24, 2012 | 6,314,420 | COLLABORATIVE/ADAPTIVE SEARCH ENGINE | Lycos Inc. | Closed |
See the full reexam picture for Emily C. O'Brien
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.