F01P 3/06
Arrangements for cooling pistons
F01P3/06 (Arrangements for cooling pistons) appears on 291 US grants and 271 published applications in this corpus.
Search patents in F01P- Granted patents
- 291
- Published applications
- 271
- Assignees
- 140
- Inventors
- 589
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 2 |
| 2002 | 1 | 2 |
| 2003 | 3 | 4 |
| 2004 | 7 | 8 |
| 2005 | 4 | 14 |
| 2006 | 11 | 7 |
| 2007 | 8 | 7 |
| 2008 | 5 | 10 |
| 2009 | 5 | 5 |
| 2010 | 7 | 9 |
| 2011 | 3 | 5 |
| 2012 | 7 | 5 |
| 2013 | 4 | 16 |
| 2014 | 8 | 13 |
| 2015 | 14 | 28 |
| 2016 | 10 | 19 |
| 2017 | 20 | 29 |
| 2018 | 17 | 13 |
| 2019 | 19 | 18 |
| 2020 | 16 | 11 |
| 2021 | 16 | 16 |
| 2022 | 17 | 11 |
| 2023 | 7 | 5 |
| 2024 | 8 | 2 |
| 2025 | 6 | 4 |
| 2026 | 2 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Piston temperature model using a physics-based split multi-model approach23 Jun 2026US 12,662,956 B2Saudi Arabian Oil Company
- Internal combustion engine control device and internal combustion engine control method27 Jan 2026US 12,535,021 B2Hitachi Astemo, Ltd.
- Piston bearing assembly for an opposed-piston engine30 Dec 2025US 12,510,015 B2General Atomics Aeronautical Systems, Inc.
- Lubrication system for a pin joint of an engine piston, an engine piston, and a method of lubricating a pin joint of an engine piston12 Aug 2025US 12,385,447 B2Cummins Inc.
- In-vehicle control device and method for controlling internal combustion engine5 Aug 2025US 12,378,927 B2Hitachi Astemo, Ltd.
- Boxer Engine and Vehicle with a Boxer Engine1 Oct 2026US 2026/0298175 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Method to shut down an internal combustion engine27 Aug 2026US 2026/0251095 A1Volvo Truck Corporation
- System and method for managing temperature in an engine of a vehicle13 Aug 2026US 2026/0235089 A1Brp-Rotax GmbH & Co. KG
- Fluid nozzle device for a piston of an engine30 Jul 2026US 2026/0218646 A1Volvo Truck Corporation
- Piston temperature model using a physics-based split multi-model approach18 Jun 2026US 2026/0168428 A1Aramco Services Company
Most cited
By later US patents
- Cylinder and piston assemblies for opposed piston engines88US 7,861,679 B2Achates Power, Inc. · 2011
- Two-piece piston assembly53US 4,377,967 AMack Trucks, Inc. · 1983
- Oil jet nozzle for an internal combustion with reciprocating pistons40US 5,533,472 AChrysler Corporation · 1996
- Apparatus for controlling temperature of internal combustion engine35US 4,399,774 ANissan Motor Co., Ltd. · 1983
- Means for controlling the oil cooling of the piston of a piston engine34US 4,114,571 A1978