Quarterhill Inc.
Patent owner in reexamination·4 ex parte reexams
Quarterhill Inc.'s patents have been the subject of 4 USPTO ex parte reexaminations. 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
220
121
123
Outcome track record
How reexams of this owner's patents resolve: claims confirmed, amended, mixed, or fully canceled.
- Certificate outcome split across every bucket
- Claim-survival rate
Defense metrics
Claim-survival rate, average pendency, and the open/closed split across every reexam of this owner's patents.
- Survival rate of closed proceedings
- Average pendency in months
Challengers & examiners
Which requesters most often challenge this owner's patents, and which examiners decide them.
- Top requesters
- Most frequent examiners
Recent reexaminations (4)
| Control # | Filed | Patent | Title | Requester | Status |
|---|---|---|---|---|---|
| 90/019,259 | Sep 26, 2023 | 8,259,688 | PRE-ALLOCATED RANDOM ACCESS IDENTIFIERS | — | Closed |
| 90/014,794 | Jul 2, 2021 | 8,259,688 | PRE-ALLOCATED RANDOM ACCESS IDENTIFERS | — | Closed |
| 90/014,588 | Oct 5, 2020 | 8,817,805 | APPARATUS, SYSTEM AND METHOD FOR THE TRANSMISSION OF DATA WITH DIFFERENT QOS ATTRIBUTES | — | Closed |
| 90/014,587 | Oct 5, 2020 | 9,854,577 | MULTI-BAND CHANNEL AGGREGATION | — | Closed |
See the full reexam picture for Quarterhill Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.