F02D 41/187
Using a hot wire flow sensor
Official title: {using a hot wire flow sensor}
F02D41/187 (Using a hot wire flow sensor) appears on 865 US grants and 556 published applications in this corpus.
Search patents in F02D- Granted patents
- 865
- Published applications
- 556
- Assignees
- 148
- Inventors
- 1,565
- Latest grant
- 23 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 11 | 0 |
| 1984 | 7 | 0 |
| 1985 | 16 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 13 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 19 | 0 |
| 1992 | 10 | 0 |
| 1993 | 14 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 11 | 0 |
| 1997 | 15 | 0 |
| 1998 | 11 | 0 |
| 1999 | 20 | 0 |
| 2000 | 20 | 0 |
| 2001 | 36 | 7 |
| 2002 | 38 | 63 |
| 2003 | 76 | 87 |
| 2004 | 78 | 76 |
| 2005 | 65 | 39 |
| 2006 | 54 | 47 |
| 2007 | 48 | 35 |
| 2008 | 32 | 28 |
| 2009 | 14 | 38 |
| 2010 | 29 | 17 |
| 2011 | 23 | 36 |
| 2012 | 27 | 7 |
| 2013 | 16 | 11 |
| 2014 | 12 | 7 |
| 2015 | 9 | 12 |
| 2016 | 6 | 5 |
| 2017 | 13 | 9 |
| 2018 | 12 | 7 |
| 2019 | 5 | 2 |
| 2020 | 5 | 10 |
| 2021 | 8 | 6 |
| 2022 | 4 | 4 |
| 2023 | 5 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Leak diagnosis for an intake system23 Jul 2024US 12,044,188 B2Bayerische Motoren Werke Aktiengesellschaft
- Physical quantity measurement device including a thermal flow rate sensor with a ventilation flow path12 Mar 2024US 11,927,466 B2Hitachi Astemo, Ltd.
- Intelligent mass air flow (MAF) prediction system with neural network12 Dec 2023US 11,840,974 B2International Engine Intellectual Property Company, LLC
- Control apparatus for internal combustion engine22 Aug 2023US 11,732,665 B1Honda Motor Co., Ltd.
- Physical quantity measurement device18 Jul 2023US 11,703,368 B2Denso Corporation
- Control Device for Internal Combustion Engine20 Aug 2026US 2026/0243212 A1Hitachi Astemo, Ltd.
- Leak Diagnosis for an Intake System7 Mar 2024US 2024/0077043 A1Bayerische Motoren Werke Aktiengesellschaft
- Control apparatus for internal combustion engine14 Sep 2023US 2023/0287843 A1Honda Motor Co., Ltd.
- Intelligent Mass Air Flow (MAF) Prediction System with Neural Network3 Nov 2022US 2022/0349358 A1International Engine Intellectual Property Company, LLC
- Evaporated fuel treatment apparatus5 May 2022US 2022/0136462 A1Aisan Kogyo Kabushiki Kaisha
Most cited
By later US patents
- System for controllably disabling cylinders in an internal combustion engine206US 6,619,258 B2Delphi Technologies, Inc. · 2003
- 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
- Control unit for vehicle and total control system therefor100US 5,794,165 AHitachi, Ltd. · 1998