F01P 7/04
By varying pump speed
Official title: by varying pump speed, e.g. by changing pump-drive gear ratio
F01P7/04 (By varying pump speed) appears on 695 US grants and 526 published applications in this corpus.
Search patents in F01P- Granted patents
- 695
- Published applications
- 526
- Assignees
- 262
- Inventors
- 1,400
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 10 | 0 |
| 1982 | 14 | 0 |
| 1983 | 11 | 0 |
| 1984 | 20 | 0 |
| 1985 | 13 | 0 |
| 1986 | 9 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 7 | 0 |
| 1990 | 13 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 12 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 23 | 0 |
| 2001 | 28 | 13 |
| 2002 | 24 | 20 |
| 2003 | 18 | 23 |
| 2004 | 22 | 19 |
| 2005 | 15 | 27 |
| 2006 | 15 | 30 |
| 2007 | 17 | 14 |
| 2008 | 15 | 14 |
| 2009 | 13 | 21 |
| 2010 | 9 | 17 |
| 2011 | 8 | 23 |
| 2012 | 8 | 30 |
| 2013 | 17 | 21 |
| 2014 | 24 | 20 |
| 2015 | 22 | 28 |
| 2016 | 17 | 29 |
| 2017 | 22 | 23 |
| 2018 | 18 | 29 |
| 2019 | 24 | 22 |
| 2020 | 27 | 23 |
| 2021 | 20 | 10 |
| 2022 | 23 | 22 |
| 2023 | 20 | 22 |
| 2024 | 10 | 6 |
| 2025 | 11 | 11 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger system11 Aug 2026US 12,703,223 B2Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Bamberg
- Transmission device for driving a fan of a cooling circuit of an internal combustion engine, associated cooling circuit, and vehicle21 Apr 2026US 12,607,142 B2Volvo Truck Corporation
- Method and control arrangement for controlling operation of a fan in a cooling system of a vehicle31 Mar 2026US 12,590,555 B2Scania CV AB
- Transportation vehicle13 Jan 2026US 12,522,283 B2Hitachi Construction Machinery Co., Ltd.
- Method for operating a vehicle cooling system16 Dec 2025US 12,497,915 B2Deere & Company
- Work machine control system, work machine, and work machine control method20 Aug 2026US 2026/0243060 A1Komatsu Ltd.
- Radiator cleanout for industrial vehicle20 Aug 2026US 2026/0243190 A1
- Fan control unit for a modular cooling system16 Jul 2026US 2026/0201826 A1AB Volvo Penta
- Transportation Vehicle9 Jul 2026US 2026/0194001 A1Hitachi Construction Machinery Co., Ltd.
- Cooling package arrangement11 Jun 2026US 2026/0160196 A1Deere & Company
Most cited
By later US patents
- Method for engine control136US 5,445,128 ADetroit Diesel Corporation · 1995
- Predictive auxiliary load management (PALM) control apparatus and method122US 7,347,168 B2Freightliner Corporation · 2008
- Cooling system for a vehicle having an internal-combustion engine99US 5,215,044 ABehr GmbH & Co. · 1993
- Power electronics cooling for a hybrid electric vehicle94US 6,450,275 B1Ford Motor Company · 2002
- Coolant/refrigerant temperature control system75US 4,555,910 ABorg-Warner Corporation · 1985