F01N 2490/16
Chambers with particular shapes
Official title: Chambers with particular shapes, e.g. spherical
F01N2490/16 (Chambers with particular shapes) appears on 82 US grants and 69 published applications in this corpus.
Search patents in F01N- Granted patents
- 82
- Published applications
- 69
- Assignees
- 63
- Inventors
- 225
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 3 |
| 2003 | 3 | 5 |
| 2004 | 5 | 3 |
| 2005 | 2 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 2 |
| 2009 | 2 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 4 | 4 |
| 2014 | 3 | 7 |
| 2015 | 3 | 3 |
| 2016 | 7 | 3 |
| 2017 | 3 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 3 |
| 2020 | 1 | 4 |
| 2021 | 1 | 2 |
| 2022 | 4 | 1 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 5 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exhaust purification apparatus5 May 2026US 12,618,352 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust handling systems for marine vessels and related methods12 Aug 2025US 12,384,508 B2Marathon Petroleum Company LP
- Sound attenuator as well as elements and a method of production thereof20 May 2025US 12,305,547 B2Teknologian tutkimuskeskus VTT Oy
- Mixer31 Dec 2024US 12,180,874 B2Purem GmbH
- Exhaust handling systems for marine vessels and related methods23 Jul 2024US 12,043,361 B1Marathon Petroleum Company LP
- Burner for an Exhaust Gas System of an Internal Combustion Engine, in Particular of a Motor Vehicle, and Internal Combustion Engine, in Particular for a Motor Vehicle6 Aug 2026US 2026/0226855 A1Mercedes-Benz Group AG
- Exhaust gas purification device for internal combustion engine4 Dec 2025US 2025/0369378 A1
- Engine4 Dec 2025US 2025/0369408 A1
- Exhaust handling systems for marine vessels and related methods27 Nov 2025US 2025/0360999 A1Marathon Petroleum Company LP
- Exhaust purification apparatus13 Nov 2025US 2025/0347243 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Exhaust muffler174US 4,880,078 AHonda Giken Kogyo Kabushiki Kaisha · 1989
- Silencer100US 6,283,246 B1Betech Co., Ltd. · 2001
- Cooling system for snowmobile engine76US 5,957,230 AYamaha Hatsudoki Kabushiki Kaisha · 1999
- Automobile exhaust noise suppressor54US 5,614,699 ANissan Motor Co., Ltd. · 1997
- Exhaust sound attenuation and control system42US 6,651,773 B12003