F02D 41/1408
Dithering techniques
Official title: {Dithering techniques}
F02D41/1408 (Dithering techniques) appears on 215 US grants and 148 published applications in this corpus.
Search patents in F02D- Granted patents
- 215
- Published applications
- 148
- Assignees
- 74
- Inventors
- 415
- Latest grant
- 7 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 9 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 5 |
| 2003 | 9 | 12 |
| 2004 | 7 | 17 |
| 2005 | 11 | 11 |
| 2006 | 18 | 9 |
| 2007 | 6 | 5 |
| 2008 | 1 | 13 |
| 2009 | 6 | 6 |
| 2010 | 10 | 2 |
| 2011 | 7 | 4 |
| 2012 | 6 | 7 |
| 2013 | 2 | 9 |
| 2014 | 7 | 3 |
| 2015 | 9 | 4 |
| 2016 | 3 | 7 |
| 2017 | 3 | 2 |
| 2018 | 6 | 7 |
| 2019 | 3 | 19 |
| 2020 | 18 | 1 |
| 2021 | 4 | 0 |
| 2022 | 2 | 3 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and a control system for controlling an internal combustion engine7 Nov 2023US 11,808,223 B2AB Volvo Penta
- Controller and control method for internal combustion engine20 Dec 2022US 11,530,661 B2Toyota Jidosha Kabushiki Kaisha
- Method for operating a drive device and corresponding drive device25 Oct 2022US 11,480,088 B2Audi AG
- Control system of internal combustion engine17 Aug 2021US 11,092,100 B2Toyota Jidosha Kabushiki Kaisha
- Controller and control method for internal combustion engine8 Jun 2021US 11,028,748 B2Toyota Jidosha Kabushiki Kaisha
- Method for positive crankshaft ventilation diagnosis11 Jul 2024US 2024/0229692 A1Delphi Technologies IP Limited
- Method for operating a drive device and corresponding drive device4 Aug 2022US 2022/0243635 A1Audi AG
- A method and a control system for controlling an internal combustion engine26 May 2022US 2022/0163003 A1AB Volvo Penta
- Controller and control method for internal combustion engine12 May 2022US 2022/0145818 A1Toyota Jidosha Kabushiki Kaisha
- Control system of internal combustion engine23 Jul 2020US 2020/0232407 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Air-fuel ratio control system for internal combustion engines and exhaust system temperature-estimating device applicable thereto101US 5,678,402 AHonda Giken Kogyo Kabushiki Kaisha · 1997
- Method of on-board detection of automotive catalyst degradation68US 5,077,970 AFord Motor Company · 1992
- Adaptive control system for power producing machines58US 4,026,251 AThe Pennsylvania Research Corporation · 1977