F01P 11/16
Concerning coolant temperature
Official title: concerning coolant temperature (F01P11/20 takes precedence)
F01P11/16 (Concerning coolant temperature) appears on 390 US grants and 300 published applications in this corpus.
Search patents in F01P- Granted patents
- 390
- Published applications
- 300
- Assignees
- 146
- Inventors
- 852
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 15 | 2 |
| 2002 | 8 | 14 |
| 2003 | 14 | 7 |
| 2004 | 12 | 13 |
| 2005 | 11 | 11 |
| 2006 | 7 | 6 |
| 2007 | 5 | 4 |
| 2008 | 8 | 5 |
| 2009 | 4 | 4 |
| 2010 | 3 | 8 |
| 2011 | 2 | 2 |
| 2012 | 5 | 7 |
| 2013 | 9 | 12 |
| 2014 | 6 | 9 |
| 2015 | 11 | 13 |
| 2016 | 8 | 20 |
| 2017 | 17 | 26 |
| 2018 | 32 | 34 |
| 2019 | 32 | 35 |
| 2020 | 36 | 25 |
| 2021 | 24 | 3 |
| 2022 | 18 | 8 |
| 2023 | 8 | 13 |
| 2024 | 10 | 6 |
| 2025 | 5 | 6 |
| 2026 | 4 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for detecting the operation of an engine-independent auxiliary heater and for diagnosing a coolant temperature of a motor vehicle4 Aug 2026US 12,697,855 B2Volkswagen Aktiengesellschaft
- Utility vehicle21 Jul 2026US 12,687,224 B2Kubota Corporation
- System for and method of controlling watercraft7 Jul 2026US 12,674,408 B2Yamaha Hatsudoki Kabushuki Kaisha
- Water outlet17 Feb 2026US 12,553,377 B2Nippon Thermostat Co., Ltd.
- Apparatus and methods related to coolant diverter valves15 Jul 2025US 12,359,608 B2Perkins Engines Company Limited
- Engine cooling device3 Sep 2026US 2026/0258751 A1Toyota Jidosha Kabushiki Kaisha
- Monitoring engine cooling system temperature instabilities20 Aug 2026US 2026/0243248 A1Halliburton Energy Services.Inc.
- Efficient heating management system integrated to a diesel engine generator using heat obtained from an external heat source to economically heat the engine block coolant6 Aug 2026US 2026/0226877 A1Panoteknik Jenerator Elektrik Sanayi Ve Ticaret Limited Sirketi
- Method of determining coolant shortage and engine cooling system using the same18 Jun 2026US 2026/0168431 A1Hyundai Motor Company
- Diagnostic method for vehicle cooling system and diagnostic device for vehicle cooling system30 Apr 2026US 2026/0116372 A1
Most cited
By later US patents
- Fail-safe thermostat98US 5,381,952 AStandard-Thomson Corporation · 1995
- Quick connect diagnostic apparatus and method for a vehicle cooling system57US 5,526,871 A1996
- Engine overheat control system57US 5,769,055 ASanshin Kogyo Kabushiki Kaisha · 1998
- Method and system for forecasting and warning on automotive abnormalities56US 4,393,365 ANippondenso Co., Ltd. · 1983
- Apparatus and methods for controlling attention of a robot55US 9,186,793 B1Brain Corporation · 2015