F02M 31/066
Operated manually
Official title: {operated manually, e.g. by means of valves on the air filter}
F02M31/066 (Operated manually) appears on 9 US grants and 4 published applications in this corpus.
Search patents in F02M- Granted patents
- 9
- Published applications
- 4
- Assignees
- 6
- Inventors
- 12
- Latest grant
- 9 Mar 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Engine system control device9 Mar 2021US 10,941,724 B2Hitachi Automotive Systems, Ltd.
- Air intake assembly for a vehicle26 Dec 2017US 9,850,858 B2Shem, LLC
- Air intake assembly for a vehicle22 Nov 2016US 9,499,043 B2Shem, LLC
- Motor-driven implement having switchable summer-winter operating function30 Sep 2014US 8,844,476 B2Makita Corporation
- Heavy duty air filter with integral snow valve13 Nov 1990US 4,969,939 AAllied-Signal Inc.
- Engine System Control Device30 Jul 2020US 2020/0240340 A1Hitachi Automotive Systems, Ltd.
- Air Intake Assembly for a Vehicle9 Mar 2017US 2017/0067420 A1Shem, LLC
- Air Intake Assembly for a Vehicle1 Oct 2015US 2015/0275828 A1Shem, LLC
- Motor-driven implement having switchable summer-winter operating function31 May 2012US 2012/0132181 A1Makita Corporation
Most cited
By later US patents
- Internal combustion engine12US 4,230,075 APurification Sciences Inc. · 1980
- Air intake assembly for a vehicle11US 9,499,043 B2Shem, LLC · 2016
- Heavy duty air filter with integral snow valve10US 4,969,939 AAllied-Signal Inc. · 1990
- Air cleaner9US 4,787,924 AKioritz Corporation · 1988
- Internal combustion engine system technical field8US 4,300,486 APurification Sciences Inc. · 1981