F02M 35/1222
By using adjustable or movable elements
Official title: {by using adjustable or movable elements, e.g. valves, membranes, bellows, expanding or shrinking elements}
F02M35/1222 (By using adjustable or movable elements) appears on 88 US grants and 61 published applications in this corpus.
Search patents in F02M- Granted patents
- 88
- Published applications
- 61
- Assignees
- 59
- Inventors
- 186
- Latest grant
- 15 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 6 | 3 |
| 2003 | 3 | 2 |
| 2004 | 3 | 2 |
| 2005 | 0 | 8 |
| 2006 | 4 | 4 |
| 2007 | 2 | 4 |
| 2008 | 3 | 3 |
| 2009 | 4 | 3 |
| 2010 | 3 | 4 |
| 2011 | 2 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 5 |
| 2014 | 3 | 4 |
| 2015 | 2 | 3 |
| 2016 | 5 | 3 |
| 2017 | 1 | 2 |
| 2018 | 2 | 4 |
| 2019 | 6 | 2 |
| 2020 | 1 | 0 |
| 2021 | 2 | 3 |
| 2022 | 3 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Detection and control of intake system noise during low pressure exhaust gas recirculation operation10 Jun 2021US 2021/0172403 A1
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Most cited
By later US patents
- Venturi muffler with variable throat area58US 5,821,475 AThe United States of America as represented by the Secretary of the Navy · 1998
- Resonator for internal combustion engines42US 4,546,733 ANippondenso Co., Ltd. · 1985
- Variable resonator42US 6,508,331 B1Siemens Canada Limited · 2003
- Resonator for internal combustion engines36US 4,539,947 ANippondenso Co., Ltd. · 1985
- Noise attenuation device for air induction system for internal combustion engine34US 5,333,576 AFord Motor Company · 1994