F01N 2230/06
Spark arresters
F01N2230/06 (Spark arresters) appears on 40 US grants and 29 published applications in this corpus.
Search patents in F01N- Granted patents
- 40
- Published applications
- 29
- Assignees
- 34
- Inventors
- 95
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 4 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 5 |
| 2015 | 5 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Off-road vehicle and engine thereof8 Apr 2025US 12,270,360 B2Zhejiang CFMOTO Power Co., Ltd.
- Compact slip-in spark arrestor30 May 2023US 11,661,873 B2
- System for a combined spark arrestor and muffler assembly18 Apr 2023US 11,629,621 B2Transportation IP Holdings, LLC
- Muffler device5 Jul 2022US 11,377,991 B2Honda Motor Co., Ltd.
- Engine and engine-driven working machine21 Jul 2020US 10,718,243 B2Koki Holdings Co., Ltd.
- Off-Road Vehicle And Engine Thereof5 Oct 2023US 2023/0313763 A1Zhejiang CFMOTO Power Co., Ltd.
- Compact slip-in spark arrestor27 Apr 2023US 2023/0128285 A1
- System for a combined spark arrestor and muffler assembly30 Dec 2021US 2021/0404359 A1Transportation IP Holdings, LLC
- Muffler device1 Jul 2021US 2021/0199034 A1Honda Motor Co., Ltd.
- Engine and engine-driven working machine18 Jan 2018US 2018/0016956 A1Hitachi Koki Co., Ltd.
Most cited
By later US patents
- Narrow profile power handle for line trimmer and the like83US 4,286,675 ABeaird-Poulan Division of Emerson Electric Co. · 1981
- Muffler for portable engine34US 4,370,855 AEmerson Electric Co. · 1983
- Method and apparatus for attenuating sound31US 4,418,790 AMcCulloch Corporation · 1983
- Catalyst muffler system30US 5,521,339 AWCI Outdoor Products, Inc. · 1996
- Muffler for an internal combustion engine29US 5,857,327 AKioritz Corporation · 1999