F01N 13/00
Exhaust or silencing apparatus characterised by constructional features
F01N13/00 (Exhaust or silencing apparatus characterised by constructional features) appears on 10,787 US grants and 9,911 published applications in this corpus.
Search patents in F01N- Granted patents
- 10,787
- Published applications
- 9,911
- Assignees
- 2,033
- Inventors
- 17,203
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 84 | 0 |
| 1977 | 43 | 0 |
| 1978 | 54 | 0 |
| 1979 | 39 | 0 |
| 1980 | 71 | 0 |
| 1981 | 63 | 0 |
| 1982 | 62 | 0 |
| 1983 | 58 | 0 |
| 1984 | 62 | 0 |
| 1985 | 59 | 0 |
| 1986 | 53 | 0 |
| 1987 | 70 | 0 |
| 1988 | 67 | 0 |
| 1989 | 90 | 0 |
| 1990 | 100 | 0 |
| 1991 | 98 | 0 |
| 1992 | 116 | 0 |
| 1993 | 103 | 0 |
| 1994 | 115 | 0 |
| 1995 | 158 | 0 |
| 1996 | 118 | 0 |
| 1997 | 131 | 0 |
| 1998 | 207 | 0 |
| 1999 | 205 | 0 |
| 2000 | 189 | 0 |
| 2001 | 222 | 80 |
| 2002 | 221 | 236 |
| 2003 | 224 | 304 |
| 2004 | 223 | 355 |
| 2005 | 231 | 365 |
| 2006 | 219 | 362 |
| 2007 | 223 | 438 |
| 2008 | 198 | 449 |
| 2009 | 253 | 473 |
| 2010 | 287 | 510 |
| 2011 | 307 | 462 |
| 2012 | 391 | 432 |
| 2013 | 424 | 410 |
| 2014 | 435 | 445 |
| 2015 | 473 | 532 |
| 2016 | 404 | 544 |
| 2017 | 487 | 527 |
| 2018 | 379 | 519 |
| 2019 | 516 | 459 |
| 2020 | 476 | 499 |
| 2021 | 441 | 381 |
| 2022 | 423 | 369 |
| 2023 | 334 | 242 |
| 2024 | 257 | 226 |
| 2025 | 244 | 171 |
| 2026 | 80 | 121 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F01N 13/009Exhaust or silencing apparatus characterised by constructional features: having two or more4,261
- F01N 13/08Exhaust or silencing apparatus characterised by constructional features: other arrangements or adaptations3,103
- F01N 13/18Construction facilitating manufacture, assembly, or disassembly2,831
- F01N 13/14Exhaust or silencing apparatus characterised by constructional features: having thermal insulation916
- F01N 13/011Exhaust or silencing apparatus characterised by constructional features: having two or more877
- F01N 13/008Mounting or arrangement of exhaust sensors in or on exhaust apparatus716
- F01N 13/004Exhaust or silencing apparatus characterised by constructional features: specially adapted for marine471
- F01N 13/16Selection of particular materials439
All 16 subgroupsShow fewer
- F01N 13/12Exhaust or silencing apparatus characterised by constructional features: specially adapted for submerged381
- F01N 13/002Apparatus adapted for particular uses219
- F01N 13/02Exhaust or silencing apparatus characterised by constructional features: having two or more196
- F01N 13/04Exhaust or silencing apparatus characterised by constructional features: having two or more144
- F01N 13/001Exhaust gas flow channels or chambers being at least partly formed in80
- F01N 13/20Exhaust or silencing apparatus characterised by constructional features: having flared outlets76
- F01N 13/007Apparatus used as intake or exhaust silencer70
- F01N 13/06Exhaust or silencing apparatus characterised by constructional features: specially adapted for star-arrangement14
Recent patents
- Desulfurization method29 Sep 2026US 12,747,685 B2Subaru Corporation
- Exhaust gas aftertreatment system with two SCR catalysts29 Sep 2026US 12,747,686 B1FEV Group GmbH
- Display driving device comprising an emission circuit and positive feedback circuit22 Sep 2026US 12,742,407 B2Purem GmbH
- Saddle-type vehicle with exhaust pipe catalyst arrangement15 Sep 2026US 12,736,004 B2Kawasaki Motors, Ltd.
- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- System for treating an exhaust gas8 Oct 2026US 2026/0307052 A1Johnson Matthey Public Limited Company
- Exhaust heat recovery device8 Oct 2026US 2026/0309067 A1
- Gas filter element, filter device and method of use1 Oct 2026US 2026/0295490 A1Pall Corporation
- An exhaust gas treatment system for treating an exhaust gas stream exiting a gasoline engine1 Oct 2026US 2026/0295528 A1
Most cited
By later US patents
- Connecting structure for exhaust pipes269US 6,406,066 B1Honda Giken Kogyo Kabushiki Kaisha · 2002
- Treatment of diesel exhaust gases207US 4,902,487 AJohnson Matthey PLC · 1990
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Exhaust purification device of internal combustion engine199US 5,473,887 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999