F02D 41/02
Circuit arrangements for generating control signals
F02D41/02 (Circuit arrangements for generating control signals) appears on 21,952 US grants and 18,333 published applications in this corpus.
Search patents in F02D- Granted patents
- 21,952
- Published applications
- 18,333
- Assignees
- 1,787
- Inventors
- 24,218
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 57 | 0 |
| 1977 | 73 | 0 |
| 1978 | 110 | 0 |
| 1979 | 95 | 0 |
| 1980 | 115 | 0 |
| 1981 | 103 | 0 |
| 1982 | 105 | 0 |
| 1983 | 146 | 0 |
| 1984 | 183 | 0 |
| 1985 | 207 | 0 |
| 1986 | 145 | 0 |
| 1987 | 197 | 0 |
| 1988 | 196 | 0 |
| 1989 | 178 | 0 |
| 1990 | 199 | 0 |
| 1991 | 225 | 0 |
| 1992 | 205 | 0 |
| 1993 | 205 | 0 |
| 1994 | 173 | 0 |
| 1995 | 198 | 0 |
| 1996 | 213 | 0 |
| 1997 | 261 | 0 |
| 1998 | 336 | 0 |
| 1999 | 321 | 0 |
| 2000 | 356 | 0 |
| 2001 | 433 | 160 |
| 2002 | 504 | 542 |
| 2003 | 596 | 656 |
| 2004 | 629 | 704 |
| 2005 | 623 | 726 |
| 2006 | 692 | 687 |
| 2007 | 609 | 746 |
| 2008 | 508 | 764 |
| 2009 | 442 | 907 |
| 2010 | 625 | 785 |
| 2011 | 609 | 788 |
| 2012 | 670 | 777 |
| 2013 | 726 | 930 |
| 2014 | 736 | 814 |
| 2015 | 801 | 991 |
| 2016 | 870 | 1059 |
| 2017 | 1014 | 1051 |
| 2018 | 1068 | 1062 |
| 2019 | 1109 | 918 |
| 2020 | 1000 | 882 |
| 2021 | 909 | 671 |
| 2022 | 776 | 552 |
| 2023 | 535 | 400 |
| 2024 | 428 | 296 |
| 2025 | 299 | 248 |
| 2026 | 139 | 217 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02D 41/14Introducing closed-loop corrections11,938
- F02D 41/04Introducing corrections for particular operating conditions8,428
- F02D 41/021Introducing corrections for particular conditions exterior to the engine6,185
- F02D 41/18By measuring intake air flow2,599
- F02D 41/0205Using an auxiliary engine speed control189
Recent patents
- Engine control system, method for controlling a dual fuel engine, and non-transitory computer-readable medium6 Oct 2026US 12,753,726 B2Cummins Power Generation Inc.
- Information processor for vehicle6 Oct 2026US 12,753,729 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods for migitating cold start emissions by managing turbocharger turbine speed29 Sep 2026US 12,747,710 B2GM Global Technology Operations LLC
- Apparatus and method for lambda control of spark-ignition engines, and motor vehicle29 Sep 2026US 12,747,711 B2Schaeffler Technologies AG & Co. KG
- Method to enhance the performance of a heavy-duty diesel-H2 dual-fuel engine through engine system optimization22 Sep 2026US 12,742,429 B2Saudi Arabian Oil Company
- Control method of aftertreatment system, control program, aftertreatment system, and engine system1 Oct 2026US 2026/0295529 A1Yanmar Holdings Co., Ltd.
- Control apparatus for vehicle1 Oct 2026US 2026/0298163 A1Toyota Jidosha Kabushiki Kaisha
- Method for emission management for a hydrogen vehicle1 Oct 2026US 2026/0298164 A1Phinia Delphi Luxembourg Sarl
- Method for controlling the rotation of a vehicle engine camshaft1 Oct 2026US 2026/0298165 A1Schaeffler Technologies AG & Co. KG
- Controller and control method1 Oct 2026US 2026/0298166 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,424US 7,604,151 B2Ethicon Endo-Surgery, Inc. · 2009
- Surgical stapling instruments having a releasable staple-forming pocket2,400US 7,438,209 B1Ethicon Endo-Surgery, Inc. · 2008
- Staple cartridge cavity configurations2,227US 8,590,762 B2Ethicon Endo-Surgery, Inc. · 2013
- Surgical stapling systems and staple cartridges for deploying surgical staples with tissue compression features2,208US 8,186,560 B2Ethicon Endo-Surgery, Inc. · 2012
- Washer for use with a surgical stapling instrument2,143US 7,669,747 B2Ethicon Endo-Surgery, Inc. · 2010