554 patents currently held
13 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.
1 more record may belong here and awaits a decision; it is 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.
57
Ending by 2030
Nov 2026
Next term end
482
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 Jun 2035 · High confidence
Also notable
Ends Jan 2035 · High confidence
Also notable
Ends Aug 2034 · High confidence
Pilot Control Mechanism for Boom Bounce Reduction
US 10,344,783
Cited by 35 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2035.
Control Method and System for Using a Pair of Independent Hydraulic Metering Valves to Reduce Boom Oscillations
US 10,036,407
Cited by 32 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.
Hydraulic System and Method for Reducing Boom Bounce with Counter-Balance Protection
US 10,502,239
Cited by 19 later US patents, top 25% of utility patents granted in 2019 in our data. Protection runs to 2034. A terminal disclaimer caps this term to an earlier patent's.
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.
- 12 fees due Dec 9 to 27, 2026 · next Dec 9
- 8 fees due Jan 2 to 16, 2027 · next Jan 2
- 9 fees due Feb 1 to 28, 2027 · next Feb 1
- 6 fees due Mar 10 to 24, 2027 · next Mar 10
- 13 fees due Apr 1 to 29, 2027 · next Apr 1
- 11 fees due May 3 to 28, 2027 · next May 3
- 13 fees due Jun 1 to 29, 2027 · next Jun 1
- 8 fees due Jul 7 to 30, 2027 · next Jul 7
- 11 fees due Aug 4 to 27, 2027 · next Aug 4
- 13 fees due Sep 5 to 30, 2027 · next Sep 5
- 11 fees due Oct 5 to 26, 2027 · next Oct 5
- 2 fees due Nov 7, 2027
Recent changes
- 15 of the patents on this record were granted since Aug 16, 2026
- 7 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 482 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Fluid Cooled Coupling Assembly | 5 in force | to Jun 2035 |
| Air Brake Tubing and Compositions for Making the Same | 5 in force | to Feb 2034 |
| Coil for Expansion Valve | 4 in force | to Dec 2040 |
| Expansion Valve | 4 in force | to Dec 2040 |
| Valve | 4 in force | to Jan 2035 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,589,298 | Roll-Up Heating for a Floor, or Wall In force · High confidence | In force | High confidence | |
| US D671,622 | Super Heat Sensor In force · High confidence | In force | High confidence | |
| US 7,866,151 | Anti-Saturation Valve Assembly for Load Sensing Hydraulic System In force · High confidence | In force | High confidence | |
| US 7,695,022 | Fluid Coupling Cap In force · High confidence | In force | High confidence | |
| US D678,470 | Magnet Valve Housing In force · High confidence | In force | High confidence | |
| US 7,516,758 | Spool-Type Manual Valve with Position-Adjustable Lever In force · High confidence | In force | High confidence | |
| US 7,490,626 | Steer Valve with Hydraulic Vehicle Position Feedback In force · High confidence | In force | High confidence | |
| US D690,390 | Thermostatic Valve In force · High confidence | In force | High confidence | |
| US D690,391 | Thermostatic Valve Insert In force · High confidence | In force | High confidence | |
| US D691,503 | Hose Sensor Signal Receiver In force · High confidence | In force | High confidence |
Also on record, not counted in the 554: 13 patents in force now held by others · 240 patents ended · 130 applications pending · 115 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.