F02D 41/18
By measuring intake air flow
Official title: by measuring intake air flow
F02D41/18 (By measuring intake air flow) appears on 2,599 US grants and 1,976 published applications in this corpus.
Search patents in F02D- Granted patents
- 2,599
- Published applications
- 1,976
- Assignees
- 346
- Inventors
- 4,056
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 14 | 0 |
| 1978 | 20 | 0 |
| 1979 | 14 | 0 |
| 1980 | 20 | 0 |
| 1981 | 17 | 0 |
| 1982 | 17 | 0 |
| 1983 | 25 | 0 |
| 1984 | 27 | 0 |
| 1985 | 30 | 0 |
| 1986 | 23 | 0 |
| 1987 | 20 | 0 |
| 1988 | 29 | 0 |
| 1989 | 29 | 0 |
| 1990 | 37 | 0 |
| 1991 | 50 | 0 |
| 1992 | 28 | 0 |
| 1993 | 29 | 0 |
| 1994 | 21 | 0 |
| 1995 | 17 | 0 |
| 1996 | 22 | 0 |
| 1997 | 24 | 0 |
| 1998 | 28 | 0 |
| 1999 | 30 | 0 |
| 2000 | 39 | 0 |
| 2001 | 64 | 11 |
| 2002 | 62 | 95 |
| 2003 | 111 | 128 |
| 2004 | 135 | 137 |
| 2005 | 117 | 89 |
| 2006 | 110 | 101 |
| 2007 | 100 | 81 |
| 2008 | 77 | 93 |
| 2009 | 40 | 113 |
| 2010 | 77 | 65 |
| 2011 | 63 | 85 |
| 2012 | 72 | 90 |
| 2013 | 77 | 88 |
| 2014 | 79 | 73 |
| 2015 | 67 | 116 |
| 2016 | 86 | 91 |
| 2017 | 102 | 91 |
| 2018 | 95 | 87 |
| 2019 | 104 | 85 |
| 2020 | 94 | 77 |
| 2021 | 87 | 69 |
| 2022 | 67 | 40 |
| 2023 | 32 | 22 |
| 2024 | 33 | 22 |
| 2025 | 18 | 11 |
| 2026 | 5 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- Control device for internal combustion engine25 Aug 2026US 12,716,393 B2Toyota Jidosha Kabushiki Kaisha
- Cold start control systems and methods24 Mar 2026US 12,583,437 B2GM Global Technology Operations LLC
- Systems and methods for controlling combustion in an engine of a marine drive3 Mar 2026US 12,565,851 B1Brunswick Corporation
- Cylinder deactivation expanded operational range with additional air source integrated with turbocharger13 Jan 2026US 12,523,184 B2PACCAR Inc
- Method and system for controlling the engine torque of an internal combustion engine1 Oct 2026US 2026/0298167 A1Vitesco Technologies GmbH
- Fuel quality determination systems and associated methods of operation27 Aug 2026US 2026/0251103 A1Inpro/Seal LLC
- Control Device for Internal Combustion Engine20 Aug 2026US 2026/0243212 A1Hitachi Astemo, Ltd.
- Exhaust monitoring apparatus6 Aug 2026US 2026/0226858 A1Toyota Jidosha Kabushiki Kaisha
- Integrated Engine Management Device and System23 Jul 2026US 2026/0210302 A1Marelli Sistemas Automotivos Industria E Comercio Brasil Ltda
Most cited
By later US patents
- System for controllably disabling cylinders in an internal combustion engine206US 6,619,258 B2Delphi Technologies, Inc. · 2003
- Device for determining load in an internal combustion engine199US 6,167,755 ARobert Bosch GmbH · 2001
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997
- Method and apparatus for operating a diesel engine109US 5,771,686 AMercedes-Benz AG · 1998