F02D 41/32
Of the low pressure type
Official title: of the low pressure type {(F02D41/3082 takes precedence)}
F02D41/32 (Of the low pressure type) appears on 1,290 US grants and 722 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,290
- Published applications
- 722
- Assignees
- 282
- Inventors
- 2,290
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 11 | 0 |
| 1980 | 13 | 0 |
| 1981 | 13 | 0 |
| 1982 | 13 | 0 |
| 1983 | 22 | 0 |
| 1984 | 23 | 0 |
| 1985 | 32 | 0 |
| 1986 | 21 | 0 |
| 1987 | 19 | 0 |
| 1988 | 28 | 0 |
| 1989 | 28 | 0 |
| 1990 | 37 | 0 |
| 1991 | 36 | 0 |
| 1992 | 41 | 0 |
| 1993 | 32 | 0 |
| 1994 | 17 | 0 |
| 1995 | 24 | 0 |
| 1996 | 36 | 0 |
| 1997 | 21 | 0 |
| 1998 | 39 | 0 |
| 1999 | 27 | 0 |
| 2000 | 30 | 0 |
| 2001 | 26 | 7 |
| 2002 | 14 | 21 |
| 2003 | 28 | 23 |
| 2004 | 29 | 31 |
| 2005 | 18 | 18 |
| 2006 | 29 | 12 |
| 2007 | 12 | 14 |
| 2008 | 10 | 21 |
| 2009 | 11 | 34 |
| 2010 | 31 | 28 |
| 2011 | 14 | 23 |
| 2012 | 13 | 18 |
| 2013 | 25 | 29 |
| 2014 | 16 | 36 |
| 2015 | 14 | 40 |
| 2016 | 32 | 50 |
| 2017 | 45 | 43 |
| 2018 | 58 | 46 |
| 2019 | 59 | 49 |
| 2020 | 46 | 53 |
| 2021 | 57 | 35 |
| 2022 | 34 | 22 |
| 2023 | 36 | 30 |
| 2024 | 25 | 14 |
| 2025 | 12 | 13 |
| 2026 | 2 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Control device for hybrid vehicle16 Jun 2026US 12,654,674 B2Toyota Jidosha Kabushiki Kaisha
- Hydrogen generation device for optimising combustion and reducing the emission of pollutants in diesel cycle engines and method of use28 Apr 2026US 12,612,886 B2
- Internal combustion engine system30 Dec 2025US 12,510,035 B2Volvo Truck Corporation
- Supplemental fuel system for compression-ignition engine30 Dec 2025US 12,510,043 B2American CNG, LLC
- Engine control system and methods25 Nov 2025US 12,480,455 B2Arctic Cat Inc.
- Fuel injection system for an internal combustion engine of a vehicle and a fuel injection method20 Aug 2026US 2026/0243192 A1Volvo Truck Corporation
- Internal combustion engine9 Jul 2026US 2026/0194024 A1Toyota Jidosha Kabushiki Kaisha
- Control device for internal combustion engine25 Jun 2026US 2026/0177016 A1Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine controller11 Jun 2026US 2026/0160212 A1Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine11 Jun 2026US 2026/0160216 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Internal combustion engine control for improved fuel efficiency208US 7,577,511 B1Tula Technology, Inc. · 2009
- Device for determining load in an internal combustion engine199US 6,167,755 ARobert Bosch GmbH · 2001
- Fuel injection system and method118US 6,959,693 B2Toyota Jidosha Kabushiki Kaisha · 2005
- System and method to pre-ignition in an internal combustion engine107US 7,178,503 B1Ford Global Technologies, LLC · 2007
- Method for determining air mass in a crankcase scavenged two-stroke engine102US 4,995,258 AGeneral Motors Corporation · 1991