F01N 3/326
Engine-driven air pumps
Official title: {Engine-driven air pumps}
F01N3/326 (Engine-driven air pumps) appears on 17 US grants and 15 published applications in this corpus.
Search patents in F01N- Granted patents
- 17
- Published applications
- 15
- Assignees
- 17
- Inventors
- 54
- Latest grant
- 23 Jan 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 2 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 3 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method, processing unit, and computer program for ascertaining an air volume provided by means of an electric air pump in an exhaust system of an internal combustion engine23 Jan 2024US 11,879,368 B2Robert Bosch GmbH
- System for thermal management of engine exhaust28 Feb 2023US 11,591,946 B1Ford Global Technologies, LLC
- Control device for internal combustion engine8 Jun 2021US 11,028,750 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust gas system with preconditioning27 Apr 2021US 10,989,084 B2Dr. Ing. h. c. F. Porsche AG
- Method for operating a drive device and corresponding drive device21 May 2019US 10,294,844 B2Audi AG
- Method, processing unit, and computer program for ascertaining an air volume provided by means of an electric air pump in an exhaust system of an internal combustion engine2 Mar 2023US 2023/0061467 A1Robert Bosch GmbH
- Internal combustion engine exhaust pipe fluidic purger system29 Oct 2020US 2020/0340386 A1Jetoptera, Inc.
- Exhaust gas system with preconditioning28 May 2020US 2020/0165949 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
- Control device for internal combustion engine21 May 2020US 2020/0157993 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for air assisted injection of a reductant into an aftertreatment system27 Jun 2019US 2019/0195106 A1Cummins Emission Solutions Inc.
Most cited
By later US patents
- Method and apparatus for estimating and controlling no x trap temperature88US 5,746,049 AFord Global Technologies, LLC · 1998
- Method for injection duration correction in an internal combustion engine having a secondary-air system14US 6,155,043 ASiemens Aktiengesellschaft · 2000
- Emissions control13US 6,799,422 B2Westerbeke Corporation · 2004
- Method of generating gas pressure in an internal combustion engine, and apparatus for carrying out this method7US 4,463,554 APierburg GmbH · 1984
- Closed crankcase ventilation system5US 7,320,316 B2Caterpillar Inc. · 2008