Leupold & Stevens Inc.
Patent owner in reexamination·4 ex parte reexams
Leupold & Stevens Inc.'s patents have been the subject of 4 USPTO ex parte reexaminations, with 1 currently open. Its patents are most often challenged by Lightforce USA, Inc. d/b/a Nightforce Optics and Nightforce USA and Primary Arms 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
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 |
|---|---|---|---|---|---|
| 90/019,828 | Jan 22, 2025 | 12,055,365 | LOCKING ADJUSTMENT DEVICE | Primary Arms LLC | Open |
| 90/019,733 | Nov 19, 2024 | 10,578,399 | LOCKING ADJUSTMENT DEVICE | — | Closed |
| 90/014,434 | Jan 17, 2020 | 6,351,907 | Spiral Cam Mechanism for Rifle Sight Adjustment | Lightforce USA, Inc. d/b/a Nightforce Optics and Nightforce USA | Closed |
| 90/014,435 | Jan 17, 2020 | 6,351,907 | SPIRAL CAM MECHANISM RIFLE SIGHT ADJUSTMENT | Lightforce USA, Inc. d/b/a Nightforce Optics and Nightforce USA | Closed |
See the full reexam picture for Leupold & Stevens Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.