F01P 7/165
Characterised by systems with two or more loops
Official title: {characterised by systems with two or more loops}
F01P7/165 (Characterised by systems with two or more loops) appears on 722 US grants and 760 published applications in this corpus.
Search patents in F01P- Granted patents
- 722
- Published applications
- 760
- Assignees
- 254
- Inventors
- 1,665
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 3 |
| 2002 | 10 | 7 |
| 2003 | 11 | 14 |
| 2004 | 8 | 19 |
| 2005 | 11 | 15 |
| 2006 | 15 | 26 |
| 2007 | 17 | 15 |
| 2008 | 7 | 13 |
| 2009 | 7 | 22 |
| 2010 | 13 | 23 |
| 2011 | 8 | 32 |
| 2012 | 14 | 28 |
| 2013 | 31 | 33 |
| 2014 | 24 | 37 |
| 2015 | 22 | 26 |
| 2016 | 20 | 49 |
| 2017 | 35 | 40 |
| 2018 | 36 | 39 |
| 2019 | 60 | 76 |
| 2020 | 64 | 59 |
| 2021 | 66 | 40 |
| 2022 | 43 | 53 |
| 2023 | 42 | 34 |
| 2024 | 28 | 24 |
| 2025 | 22 | 17 |
| 2026 | 8 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve device29 Sep 2026US 12,747,797 B2Denso Corporation
- Valve device11 Aug 2026US 12,704,188 B2Denso Corporation
- Fluid management apparatus and heat management system2 Jun 2026US 12,643,391 B2Zhejiang Sanhua Automotive Components Co., Ltd.
- Valve/pump unit14 Apr 2026US 12,601,351 B2Vitesco Technologies GmbH
- Heat management system for vehicle24 Mar 2026US 12,583,286 B2Volvo Construction Equipment AB
- Fluid-dispensing motorised valve20 Aug 2026US 2026/0243357 A1Vernet
- Engine System With Thermostat Arrangement For Controlling Coolant Flow Through A Bypass Circuit16 Jul 2026US 2026/0201827 A1Caterpillar Shrewsbury Limited
- Valve assembly16 Jul 2026US 2026/0201965 A1Hanon Systems EFP Korea Inc.
- Thermostat device25 Jun 2026US 2026/0177153 A1
- Multi-way valve for controlling a flow of a fluid18 Jun 2026US 2026/0168591 A1Volkswagen Aktiengesellschaft
Most cited
By later US patents
- Hybrid electric vehicle regenerative braking energy recovery system317US 5,291,960 AFord Motor Company · 1994
- Hybird vehicle cooling system127US 5,255,733 AFord Motor Company · 1993
- Thermal management systems and methods118US 7,147,071 B2Battelle Energy Alliance, LLC · 2006
- Auxiliary power unit117US 5,333,678 AOnan Corporation · 1994
- Cooling system for a vehicle having an internal-combustion engine99US 5,215,044 ABehr GmbH & Co. · 1993