Description
Class F01P : COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
Subclass 3/00: Liquid cooling (propelling cooling-air or liquid coolants F01P 5/00; controlling supply or circulation of coolants F01P 7/00)
F01P 3/00
Sub-Class
Stats
- 261 US PATENTS IN FORCE
- 7 US APPLICATIONS PENDING
- 73 Total Patent Owners
- 796 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12264604 | Maintaining oil pressure during cylinder deactivation operation | Aug 09, 22 | Apr 01, 25 | Cummins Inc. |
| 12234758 | Exhaust assembly temperature regulation for shutdown | Feb 06, 24 | Feb 25, 25 | Caterpillar Inc. |
| 12157578 | Aircraft power plant | Nov 29, 23 | Dec 03, 24 | PRATT & WHITNEY CANADA CORP. |
| 12140068 | Water management system for a hydrogen engine | Dec 11, 23 | Nov 12, 24 | Hyundai Motor Company; KIA CORPORATION; Hyundam Industrial Co., Ltd.; |
| 12134980 | Liquid ammonia phase-change cooling type hybrid power thermal management system | Feb 21, 22 | Nov 05, 24 | Harbin Engineering University |
| 11939904 | Optimized piston temperature control in gaseous fuel hydrogen engine system | Feb 18, 22 | Mar 26, 24 | Caterpillar Inc. |
| 11866181 | Aircraft power plant | Sep 15, 21 | Jan 09, 24 | PRATT & WHITNEY CANADA CORP. |
| 11870328 | Combined cooling system for motor and motor controller | Jun 30, 21 | Jan 09, 24 | JING-JIN ELECTRIC TECHNOLOGIES CO., LTD. |
| 11837944 | Car motor cooling apparatus | Apr 29, 20 | Dec 05, 23 | Hyundai Mobis Co., Ltd. |
| 11745120 | Light-weight coolant bottle | Feb 26, 21 | Sep 05, 23 | Faraday & Future Inc. |
| 11542855 | PCJ solenoid valve diagnostic method | May 09, 22 | Jan 03, 23 | Hyundai Motor Company; KIA CORPORATION; |
| 11530743 | Vehicle | Dec 13, 21 | Dec 20, 22 | Honda Motor Co. Ltd. |
| 11506110 | Oil-spray tube with poppet valve | May 18, 20 | Nov 22, 22 | Schaeffler Technologies AG & Co. KG |
| 11498088 | Work machine | Oct 01, 21 | Nov 15, 22 | Honda Motor Co. Ltd. |
| 11492953 | Heat exchanger with coolant manifold | Nov 09, 21 | Nov 08, 22 | Caterpillar Inc. |
| 11473487 | System for performing flushing through cooling water pathway in marine propulsion device | Oct 02, 19 | Oct 18, 22 | Yamaha Hatsudoki Kabushiki Kaisha |
| 11473484 | Axial fluid spray nozzle with vent valve | Jun 12, 18 | Oct 18, 22 | Bontaz Centre R & D |
| 11459938 | Internal combustion system | Dec 16, 21 | Oct 04, 22 | 501 Toyota Jidosha Kabushiki Kaisha |
| 11415040 | Heating oil for enhanced active thermal coolant system | Feb 25, 21 | Aug 16, 22 | GM Global Technology Operations LLC |
| 11415028 | Hybrid vehicle | May 12, 20 | Aug 16, 22 | 501 Toyota Jidosha Kabushiki Kaisha |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0101,928 | IN-VEHICLE CONTROL DEVICE AND METHOD FOR CONTROLLING INTERNAL COMBUSTION ENGINE | Feb 20, 23 | Mar 27, 25 | Hitachi Astemo, Ltd. |
| 2025/0059,905 | INTEGRATED ELECTRIC OIL PUMP AND OPERATION METHOD THEREOF | Aug 13, 24 | Feb 20, 25 | Not available |
| 2025/0051,017 | AIRCRAFT POWER PLANT | Oct 30, 24 | Feb 13, 25 | Not available |
| 2024/0360,352 | HEAT TRANSFER FLUIDS BASED ON SYNTHETIC ESTERS | Apr 26, 24 | Oct 31, 24 | Not available |
| 2024/0288,060 | TRACTION DRIVE HAVING A COOLING SYSTEM WITH TWO COOLING CIRCUITS | Jun 13, 22 | Aug 29, 24 | ZF Friedrichshafen AG |
| 2021/0025,316 | GRADIENT-TYPE EXPANSION TANK FOR AUTOMOBILE | Apr 16, 19 | Jan 28, 21 | Not available |
| 2020/0218,293 | HOT TEMPERATURE RESTRICTED VALVE | Jan 09, 19 | Jul 09, 20 | Not available |
Top Owners in This Subclass
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Patents Issued To Date - By Filing Year
Average Time to Issuance
- 28 Months (last 2 years Issuances)
- 28 Months (last 5 years Issuances)