F01N 2210/00
Combination of methods of silencing
F01N2210/00 (Combination of methods of silencing) appears on 77 US grants and 43 published applications in this corpus.
Search patents in F01N- Granted patents
- 77
- Published applications
- 43
- Assignees
- 53
- Inventors
- 179
- Latest grant
- 18 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 3 | 0 |
| 1990 | 12 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 2 |
| 2003 | 3 | 2 |
| 2004 | 5 | 5 |
| 2005 | 3 | 3 |
| 2006 | 0 | 0 |
| 2007 | 3 | 1 |
| 2008 | 0 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 3 | 4 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 4 |
| 2017 | 4 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 5 |
| 2020 | 2 | 5 |
| 2021 | 3 | 3 |
| 2022 | 8 | 1 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Acoustically tuned muffler18 Jul 2023US 11,702,969 B2Tenneco Automotive Operating Company Inc.
- Exhaust muffler31 Jan 2023US 11,566,547 B2Honda Motor Co., Ltd.
- Acoustic damper for gas turbine combustors with orthogonal slots27 Dec 2022US 11,536,174 B2President and Fellows of Harvard College
- Methods and systems for controlling imbalance with an exhaust tuning valve13 Sep 2022US 11,441,499 B1Ford Global Technologies, LLC
- Exhaust sound attenuation device6 Sep 2022US 11,434,794 B2Caterpillar Inc.
- Acoustically Tuned Muffler1 Sep 2022US 2022/0275738 A1Tenneco Automotive Operating Company Inc.
- Exhaust muffler30 Sep 2021US 2021/0301693 A1Honda Motor Co., Ltd.
- Muffler system29 Jul 2021US 2021/0231036 A1Futaba Industrial Co., Ltd.
- Muffler22 Apr 2021US 2021/0115822 A1Tenneco Automotive Operating Company Inc.
- Exhaust sound attenuation device10 Dec 2020US 2020/0386132 A1Caterpillar Inc.
Most cited
By later US patents
- Exhaust muffler174US 4,880,078 AHonda Giken Kogyo Kabushiki Kaisha · 1989
- Engine-control apparatus48US 4,926,636 AMazda Motor Corporation · 1990
- Exhaust system for small planing boat45US 5,234,364 ASanshin Kogyo Kabushiki Kaisha · 1993
- Jet engine noise suppressor44US 4,979,587 AThe Boeing Company · 1990
- Exhaust sound attenuation and control system42US 6,651,773 B12003