F01P
Cooling of machines or engines in general
Official title: COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES (arrangements in connection with cooling of propulsion units in vehicles B60K11/00; heat-transfer, heat-exchange or heat-storage materials C09K5/00; {cooling of gas-turbine engines F02C7/12}; heat exchange in general, radiators F28)
F01P (Cooling of machines or engines in general) appears on 9,099 US grants and 7,730 published applications in this corpus.
Search patents in F01P- Granted patents
- 9,099
- Published applications
- 7,730
- Assignees
- 1,940
- Inventors
- 15,775
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 59 | 0 |
| 1977 | 54 | 0 |
| 1978 | 66 | 0 |
| 1979 | 54 | 0 |
| 1980 | 73 | 0 |
| 1981 | 53 | 0 |
| 1982 | 76 | 0 |
| 1983 | 83 | 0 |
| 1984 | 105 | 0 |
| 1985 | 126 | 0 |
| 1986 | 104 | 0 |
| 1987 | 125 | 0 |
| 1988 | 122 | 0 |
| 1989 | 99 | 0 |
| 1990 | 125 | 0 |
| 1991 | 105 | 0 |
| 1992 | 114 | 0 |
| 1993 | 89 | 0 |
| 1994 | 78 | 0 |
| 1995 | 93 | 0 |
| 1996 | 110 | 0 |
| 1997 | 114 | 0 |
| 1998 | 141 | 0 |
| 1999 | 144 | 0 |
| 2000 | 181 | 0 |
| 2001 | 182 | 75 |
| 2002 | 187 | 210 |
| 2003 | 215 | 201 |
| 2004 | 192 | 231 |
| 2005 | 193 | 244 |
| 2006 | 191 | 241 |
| 2007 | 157 | 206 |
| 2008 | 147 | 211 |
| 2009 | 129 | 243 |
| 2010 | 133 | 238 |
| 2011 | 125 | 255 |
| 2012 | 182 | 275 |
| 2013 | 200 | 327 |
| 2014 | 263 | 354 |
| 2015 | 281 | 414 |
| 2016 | 292 | 489 |
| 2017 | 384 | 531 |
| 2018 | 427 | 472 |
| 2019 | 517 | 517 |
| 2020 | 493 | 453 |
| 2021 | 443 | 329 |
| 2022 | 396 | 340 |
| 2023 | 286 | 281 |
| 2024 | 241 | 236 |
| 2025 | 227 | 191 |
| 2026 | 123 | 166 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F01P 3/00Liquid cooling3,600
- F01P 7/00Controlling of coolant flow3,549
- F01P 11/00Component parts, details, or accessories not provided for in, or of interest3,073
- F01P 5/00Pumping cooling-air or liquid coolants2,271
- F01P 2060/00Cooling circuits using auxiliariesIndexing code2,074
- F01P 2025/00MeasuringIndexing code1,241
- F01P 2050/00ApplicationsIndexing code928
- F01P 1/00Air cooling744
Recent patents
- Liquid tank for a liquid system of a vehicle, liquid system, and vehicle6 Oct 2026US 12,752,620 B2Hella GmbH & Co. KGaA
- Internal combustion engine with combustion pre-chamber6 Oct 2026US 12,753,717 B2Brp-Rotax GmbH & Co. KG
- Thermostatic valve having a sleeve6 Oct 2026US 12,754,573 B2Vernet
- BLDC motor controller6 Oct 2026US 12,756,279 B2Hanon Systems
- Engine cooling system29 Sep 2026US 12,747,687 B2Toyota Jidosha Kabushiki Kaisha
- Coolant module8 Oct 2026US 2026/0309068 A1Hanon Systems
- Cooler fan module of a motor vehicle8 Oct 2026US 2026/0309069 A1Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
- Reservoir tank and coolant module including the same8 Oct 2026US 2026/0309070 A1Hanon Systems
- Rotary internal combustion engine with integrated pump8 Oct 2026US 2026/0309074 A1Pratt & Whitney Canada Corp.
- Containerized ultra-low nox diesel engine generator set with roof-mounted selective catalytic reduction system8 Oct 2026US 2026/0309075 A1Industrial Service Solutions WC, Inc.
Most cited
By later US patents
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,424US 7,604,151 B2Ethicon Endo-Surgery, Inc. · 2009
- Surgical stapling instruments having a releasable staple-forming pocket2,400US 7,438,209 B1Ethicon Endo-Surgery, Inc. · 2008
- Staple cartridge cavity configurations2,227US 8,590,762 B2Ethicon Endo-Surgery, Inc. · 2013
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,208US 8,186,560 B2Ethicon Endo-Surgery, Inc. · 2012
- Washer for use with a surgical stapling instrument2,143US 7,669,747 B2Ethicon Endo-Surgery, Inc. · 2010