1,061 patents currently held
7 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.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
100
Ending by 2030
Nov 2026
Next term end
985
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 Jul 2027 · High confidence
Also notable
Ends Aug 2028 · High confidence
Also notable
Ends Mar 2029 · High confidence
Variable Capacity Vane Pump with Dual Control Chambers
US 7,794,217
Cited by 40 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 2027.
Vehicle Cooling System with Directed Flows
US 8,181,610
Cited by 27 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Control System and Method for Pump Output Pressure Control
US 8,202,061
Cited by 40 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
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.
- 3 fees due Nov 21 to 30, 2026 · next Nov 21
- 17 fees due Dec 2 to 27, 2026 · next Dec 2
- 15 fees due Jan 2 to 30, 2027 · next Jan 2
- 14 fees due Feb 1 to 28, 2027 · next Feb 1
- 15 fees due Mar 8 to 26, 2027 · next Mar 8
- 27 fees due Apr 1 to 30, 2027 · next Apr 1
- 18 fees due May 5 to 26, 2027 · next May 5
- 19 fees due Jun 1 to 30, 2027 · next Jun 1
- 20 fees due Jul 7 to 30, 2027 · next Jul 7
- 17 fees due Aug 2 to 27, 2027 · next Aug 2
- 14 fees due Sep 1 to 30, 2027 · next Sep 1
- 20 fees due Oct 2 to 30, 2027 · next Oct 2
- 8 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- Oct 12Assignment recorded on 1 record: Su Lee, Hak and 7 others to Hanon Systems Recorded Oct 12, 2026, executed Oct 8, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76339, frame 500.
- 30 of the patents on this record were granted since Aug 16, 2026
- 18 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 985 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Method of Controlling Air Conditioner for Vehicles | 19 in force | to Dec 2033 |
| Camshaft Adjusting Means | 4 in force | to Aug 2034 |
| Fan Shroud for Motor Vehicle | 3 in force | to May 2036 |
| Photocatalyst Device and Air Conditioner for Vehicle Having the Same | 3 in force | to May 2035 |
| Vehicle Cooling System with Directed Flows | 3 in force | to Aug 2028 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,658,080 | Method of Controlling Air Conditioner for Vehicles In force · High confidence | In force | High confidence | |
| US 7,494,328 | NVH and Gas Pulsation Reduction in Ac Compressor In force · High confidence | In force | High confidence | |
| US 7,540,322 | Air Conditioner for Vehicle In force · High confidence | In force | High confidence | |
| US 7,523,781 | Heat Exchanger In force · High confidence | In force | High confidence | |
| US 8,066,497 | Pump with Side Surface Coating In force · High confidence | In force | High confidence | |
| US 7,682,233 | Blower for Air Conditioner of Automotive Vehicles In force · High confidence | In force | High confidence | |
| US 7,419,208 | Carrier for Front End Module of Vehicle In force · High confidence | In force | High confidence | |
| US 7,470,177 | Device for Control of Air Flow Rates to the Instrument Panel Air Outlets of a Vehicle Heating or Air Conditioning Unit In force · High confidence | In force | High confidence | |
| US 7,490,659 | Integral-Type Heat Exchanger In force · High confidence | In force | High confidence | |
| US 7,594,410 | Method of Controlling Air Conditioner for Vehicles In force · High confidence | In force | High confidence |
Also on record, not counted in the 1,061: 7 patents in force now held by others · 293 patents ended · 281 applications pending · 262 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.