1,383 patents currently held
36 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
126
Ending by 2030
Nov 2026
Next term end
1,325
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Oct 2035 · High confidence
Also notable
Ends Jun 2034 · High confidence
Also notable
Ends Aug 2028 · High confidence
Mine Management System and Mine Managing Method
US 9,593,463
Cited by 20 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.
Work Vehicle and Control Method for Same
US 9,732,499
The largest patent family in this portfolio, 6 related applications, renewed at every maintenance window due so far. Protection runs to 2034. A terminal disclaimer caps this term to an earlier patent's.
Vehicle Seat
US D711,125
Granted 2014. Computed term ends 2028.
Formerly held, still cited
Notable
Ends Jan 2028 · High confidence
Cited by 50 later US patents, top 25% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Reg Seneca, LLC
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 10 fees due Nov 19 to 30, 2026 · next Nov 19
- 19 fees due Dec 2 to 27, 2026 · next Dec 2
- 27 fees due Jan 2 to 30, 2027 · next Jan 2
- 27 fees due Feb 1 to 28, 2027 · next Feb 1
- 26 fees due Mar 1 to 29, 2027 · next Mar 1
- 36 fees due Apr 3 to 30, 2027 · next Apr 3
- 22 fees due May 3 to 28, 2027 · next May 3
- 22 fees due Jun 1 to 30, 2027 · next Jun 1
- 23 fees due Jul 5 to 30, 2027 · next Jul 5
- 27 fees due Aug 2 to 27, 2027 · next Aug 2
- 33 fees due Sep 1 to 30, 2027 · next Sep 1
- 32 fees due Oct 2 to 30, 2027 · next Oct 2
- 4 fees due Nov 5 to 10, 2027 · next Nov 5
Recent changes
- Nov 2Assignment recorded on 1 record: Fujimoto, Yasutaka and 4 others to Komatsu Ltd. Recorded Nov 2, 2026, executed Sep 2, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76587, frame 944.
- Sep 30Assignment recorded on 1 record: Awa, Yoshiki and 2 others to Komatsu Ltd. Recorded Sep 30, 2026, executed Sep 14, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76587, frame 834.
- 40 of the patents on this record were granted since Aug 16, 2026
- 28 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 1,325 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Hydraulic Excavator | 4 in force | to Nov 2032 |
| Steering Device for Wheel Loader | 4 in force | to Apr 2032 |
| Work Vehicle Periphery Monitoring System and Work Vehicle Periphery Monitoring Method | 3 in force | to Jul 2039 |
| Wheel Loader and Method for Controlling Wheel Loader | 3 in force | to Jun 2038 |
| Bulldozer | 3 in force | to Aug 2037 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D671,565 | Control Lever for Construction Machinery In force · High confidence | In force | High confidence | |
| US 7,695,055 | Cab Structure of Construction Machine In force · High confidence | In force | High confidence | |
| US 7,810,581 | Blade Apparatus for Work Machine and Work Machine Having the Same In force · High confidence | In force | High confidence | |
| US 7,739,894 | Die Cushion Controller held by Komatsu Ltd. and Komatsu Industries Corp. In force · High confidence | In force | High confidence | |
| US 7,717,816 | Transmission In force · High confidence | In force | High confidence | |
| US 7,967,547 | Work Machine In force · High confidence | In force | High confidence | |
| US D682,322 | Hydraulic Excavator In force · High confidence | In force | High confidence | |
| US D682,887 | Hydraulic Excavator In force · High confidence | In force | High confidence | |
| US D682,888 | Wheel Loader In force · High confidence | In force | High confidence | |
| US D682,889 | Wheel Loader In force · High confidence | In force | High confidence |
Also on record, not counted in the 1,383: 36 patents in force now held by others · 878 patents ended · 455 applications pending · 383 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.