Guehring Kg
Ex parte reexamination requester·3 ex parte reexams
Guehring Kg has requested 3 USPTO ex parte reexaminations. It most often challenges patents owned by Wang Hongjia and Hongjia Wang. 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
222
123
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 |
|---|---|---|---|---|---|
| 90/019,180 | May 8, 2023 | 11,007,583 | TWIST DRILL | Wang Hongjia | Closed |
| 90/019,121 | Oct 12, 2022 | 11,007,583 | TWIST DRILL | Hongjia Wang | Closed |
| 90/014,941 | Jan 13, 2022 | 11,007,583 | TWIST DRILL | — | Closed |
See the full reexam picture for Guehring Kg
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.