F01M 5/02
Conditioning lubricant for aiding engine starting
Official title: Conditioning lubricant for aiding engine starting, e.g. heating
F01M5/02 (Conditioning lubricant for aiding engine starting) appears on 278 US grants and 207 published applications in this corpus.
Search patents in F01M- Granted patents
- 278
- Published applications
- 207
- Assignees
- 134
- Inventors
- 591
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 12 | 0 |
| 2001 | 3 | 1 |
| 2002 | 8 | 8 |
| 2003 | 8 | 6 |
| 2004 | 2 | 6 |
| 2005 | 3 | 4 |
| 2006 | 4 | 6 |
| 2007 | 3 | 0 |
| 2008 | 2 | 6 |
| 2009 | 2 | 2 |
| 2010 | 1 | 18 |
| 2011 | 7 | 12 |
| 2012 | 6 | 11 |
| 2013 | 14 | 16 |
| 2014 | 9 | 10 |
| 2015 | 11 | 16 |
| 2016 | 11 | 15 |
| 2017 | 18 | 14 |
| 2018 | 13 | 18 |
| 2019 | 16 | 14 |
| 2020 | 16 | 9 |
| 2021 | 7 | 3 |
| 2022 | 7 | 6 |
| 2023 | 7 | 4 |
| 2024 | 4 | 0 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermal storage materials and applications thereof5 May 2026US 12,618,346 B2Brandeis University
- Lubricant pan and internal combustion engine for a vehicle10 Feb 2026US 12,546,240 B2Bayerische Motoren Werke Aktiengesellschaft
- Supercooling cancellation device, heat storage device, and power unit29 Apr 2025US 12,286,923 B2Panasonic Holdings Corporation
- Methods and systems for reducing engine idling of fuel-driven equipment11 Jun 2024US 12,006,903 B2Ty-Crop Manufacturing Ltd.
- Pre-heated crankcase ventilation system architecture2 Apr 2024US 11,946,397 B1Caterpillar Inc.
- Systems and methods of lubrication of engines24 Sep 2026US 2026/0286869 A1Cummins Power Generation Inc.
- Internal combustion engine arranged with the crankshaft at the top and corresponding control method20 Nov 2025US 2025/0354505 A1
- Natural gas fluid heating pre-start system17 Aug 2023US 2023/0258111 A1Stewart & Stevenson LLC
- Supercooling cancellation device, heat storage device, and power unit10 Aug 2023US 2023/0250749 A1Panasonic Holdings Corporation
- Oil circulation system for preheating, lubricating, and cooling used for internal combustion engine and industrial facility16 Mar 2023US 2023/0080987 A1
Most cited
By later US patents
- Power train system for a vehicle and method for operating same136US 6,048,288 AToyota Jidosha Kabushiki Kaisha · 2000
- Use of traction inverter for supplying power for non-traction applications67US 6,023,137 AGeneral Electric Company · 2000
- Engine oil heater66US 7,104,233 B2Briggs & Stratton Corporation · 2006
- Fluid contaminate filtration system including a filter, a contaminate particle trap, and a cold start fluid circulation system61US 5,089,129 A1992
- Power management system48US 7,276,815 B2Caterpillar Inc. · 2007