F01N 3/2889
With heat exchangers in a single housing
Official title: {with heat exchangers in a single housing}
F01N3/2889 (With heat exchangers in a single housing) appears on 185 US grants and 119 published applications in this corpus.
Search patents in F01N- Granted patents
- 185
- Published applications
- 119
- Assignees
- 125
- Inventors
- 380
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 0 |
| 2002 | 3 | 3 |
| 2003 | 5 | 9 |
| 2004 | 4 | 1 |
| 2005 | 2 | 3 |
| 2006 | 4 | 10 |
| 2007 | 2 | 4 |
| 2008 | 2 | 4 |
| 2009 | 7 | 4 |
| 2010 | 4 | 8 |
| 2011 | 2 | 8 |
| 2012 | 5 | 3 |
| 2013 | 9 | 8 |
| 2014 | 8 | 7 |
| 2015 | 6 | 2 |
| 2016 | 3 | 7 |
| 2017 | 3 | 4 |
| 2018 | 8 | 6 |
| 2019 | 6 | 5 |
| 2020 | 3 | 7 |
| 2021 | 6 | 4 |
| 2022 | 8 | 3 |
| 2023 | 2 | 7 |
| 2024 | 6 | 2 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Drive system30 Dec 2025US 12,512,727 B2Hitachi Astemo, Ltd.
- Heat exchange member, heat exchanger and heat conductive member25 Mar 2025US 12,258,893 B2NGK Insulators, Ltd.
- System and method for treating gas turbine exhaust gas12 Nov 2024US 12,140,065 B2Nooter/Eriksen, Inc.
- Ceramic heating plate as heating element10 Sep 2024US 12,085,003 B2Vitesco Technologies GmbH
- System and method for treating gas turbine exhaust gas9 Jul 2024US 12,031,468 B2Nooter/Eriksen, Inc.
- Fluid reactor device and method for operating a fluid reactor device27 Jun 2024US 2024/0209764 A1Megtec Systems, Inc.
- Ceramic heating plate as heating element28 Mar 2024US 2024/0102411 A1Vitesco Technologies GmbH
- System and method for treating gas turbine exhaust gas19 Oct 2023US 2023/0332526 A1Nooter/Eriksen, Inc.
- System and method for treating gas turbine exhaust gas19 Oct 2023US 2023/0332529 A1Nooter/Eriksen, Inc.
- Catalyst device5 Oct 2023US 2023/0313722 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Compact vacuum insulation176US 5,157,893 AMidwest Research Institute · 1992
- Compact vacuum insulation174US 5,175,975 AMidwest Research Institute · 1993
- Method and apparatus for treating an engine exhaust gas stream154US 6,171,556 B2Engelhard Corporation · 2001
- Cooking utensil with improved heat retention150US 5,643,485 AMidwest Research Institute · 1997
- Method and apparatus for thermal management of vehicle exhaust systems92US 5,477,676 AMidwest Research Institute · 1995