F02D 19/087
With determination of densities, viscosities, composition, concentration or mixture ratios of fuels
Official title: {with determination of densities, viscosities, composition, concentration or mixture ratios of fuels}
F02D19/087 (With determination of densities, viscosities, composition, concentration or mixture ratios of fuels) appears on 462 US grants and 390 published applications in this corpus.
Search patents in F02D- Granted patents
- 462
- Published applications
- 390
- Assignees
- 120
- Inventors
- 819
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 17 | 0 |
| 1993 | 23 | 0 |
| 1994 | 12 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 10 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 5 |
| 2004 | 3 | 4 |
| 2005 | 5 | 7 |
| 2006 | 5 | 4 |
| 2007 | 9 | 15 |
| 2008 | 9 | 39 |
| 2009 | 20 | 61 |
| 2010 | 39 | 62 |
| 2011 | 47 | 35 |
| 2012 | 38 | 23 |
| 2013 | 28 | 24 |
| 2014 | 29 | 12 |
| 2015 | 7 | 15 |
| 2016 | 14 | 13 |
| 2017 | 12 | 7 |
| 2018 | 16 | 9 |
| 2019 | 6 | 12 |
| 2020 | 15 | 11 |
| 2021 | 16 | 7 |
| 2022 | 7 | 3 |
| 2023 | 4 | 4 |
| 2024 | 6 | 5 |
| 2025 | 5 | 4 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for operating an internal combustion engine28 Apr 2026US 12,612,879 B2Innio Jenbacher GmbH & Co OG
- Fuel supply system for supplying a fuel emulsion to a fuel injection system of an engine14 Apr 2026US 12,601,305 B2Caterpillar Motoren GmbH & Co. KG
- Fuel injector control strategy using fuel bulk modulus for fuel injector command determination13 Jan 2026US 12,523,182 B2Caterpillar Inc.
- Method for controlling operation of an internal combustion engine which runs on a fuel mixture of hydrogen and natural gas4 Nov 2025US 12,460,589 B2Caterpillar Energy Solutions GmbH
- Internal combustion engine control device1 Jul 2025US 12,345,214 B2Hitachi Astemo, Ltd.
- Fuel type detection for internal combustion engine6 Aug 2026US 2026/0226868 A1Caterpillar Inc.
- A fuel mixture for operating an internal combustion engine2 Jul 2026US 2026/0185493 A1WäRtsilä Finland Oy
- Internal combustion engine controller11 Jun 2026US 2026/0160212 A1Toyota Jidosha Kabushiki Kaisha
- Method and device for carrying out at least one vehicle function of a vehicle, and method and device for creating a trained machine learning exhaust gas determination model21 May 2026US 2026/0138583 A1Volkswagen Aktiengesellschaft
- Engine control system and methods16 Apr 2026US 2026/0104016 A1Innio Jenbacher GmbH & Co OG
Most cited
By later US patents
- Operation control system for internal combustion engine138US 4,993,386 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1991
- Control system for engine operation using two fuels of different volatility108US 4,706,630 AFord Motor Company · 1987
- Pressure-responsive fuel delivery system106US 5,044,344 AWalbro Corporation · 1991
- Control apparatus for alcohol engine103US 5,233,944 AFuji Jukogyo Kabushiki Kaisha · 1993
- Control apparatus for a turbocharged alcohol engine79US 5,131,228 AFuji Jukogyo Kabushiki Kaisha · 1992