Caterpillar Inc.
Ex parte reexamination requester·10 ex parte reexams
Caterpillar Inc. has requested 10 USPTO ex parte reexaminations, with 10 currently open. It most often challenges patents owned by Doosan Bobcat North America Inc. and Clark Equipment Company. 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 (10)
| Control # | Filed | Patent | Title | Owner | Status |
|---|---|---|---|---|---|
| 90/016,000 | Feb 26, 2026 | 10,934,687 | HYDRAULIC POWER PRIORITIZATION | Clark Equipment Company | Open |
| 90/016,007 | Feb 26, 2026 | 8,364,356 | DRIVE CONTROL SYSTEM FOR A VEHICLE AND METHOD | Doosan Bobcat North America Inc. | Open |
| 90/016,006 | Feb 26, 2026 | 10,302,027 | VARIABLE ENGINE SPEED CONTROL | Doosan Bobcat North America Inc. | Open |
| 90/016,003 | Feb 26, 2026 | 10,934,684 | CONTROL SYSTEM FOR POWER MACHINE | Clark Equipment Company | Open |
| 90/016,002 | Feb 26, 2026 | 7,831,364 | "OFF-BOARD" CONTROL FOR A POWER MACHINE OR VEHICLE | Doosan Bobcat North America Inc. | Open |
| 90/015,999 | Feb 26, 2026 | 9,382,925 | AUTOMATED SHIFTING OF HYDRAULIC DRIVE SYSTEMS | Doosan Bobcat North America Inc. | Open |
| 90/016,004 | Feb 26, 2026 | 10,464,619 | TRACKED UTILITY VEHICLE | Doosan Bobcat North America Inc. | Open |
| 90/016,001 | Feb 26, 2026 | 10,494,788 | SYSTEM AND METHOD FOR DEFINING A ZONE OF OPERATION FOR A LIFT ARM | Doosan Bobcat North America Inc. | Open |
| 90/016,010 | Feb 26, 2026 | 8,047,760 | INTEGRAL POWER OR ELECTRICAL CONDUIT COUPLER | Clark Equipment Company | Open |
| 90/016,005 | Feb 26, 2026 | 8,392,075 | Carrier and Backhoe Control System and Method | Doosan Bobcat North America Inc. | Open |
See the full reexam picture for Caterpillar Inc.
Certificate outcomes, pendency, and the parties and examiners behind these cases. Free to sign up.