F01L 2001/188
Fulcrums at upper surface
Official title: {Fulcrums at upper surface}
F01L2001/188 (Fulcrums at upper surface) appears on 42 US grants and 16 published applications in this corpus.
Search patents in F01L- Granted patents
- 42
- Published applications
- 16
- Assignees
- 22
- Inventors
- 68
- Latest grant
- 26 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 0 | 2 |
| 2020 | 3 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Engine braking system26 Nov 2024US 12,152,515 B2Deere & Company
- Rocker arm assembly23 Feb 2021US 10,927,724 B2Eaton Corporation
- Variable length piston assemblies for engine valve actuation systems15 Sep 2020US 10,774,693 B2Jacobs Vehicle Systems, Inc.
- Variable ratio rocker arm system24 Mar 2020US 10,598,054 B2Deere & Company
- Valve train assembly17 Mar 2020US 10,590,809 B2Eaton Corporation
- Engine braking system6 Jul 2023US 2023/0212965 A1Deere & Company
- Variable length piston assemblies for engine valve actuation systems9 Apr 2020US 2020/0109648 A1Jacobs Vehicle Systems, Inc.
- Variable ratio rocker arm system28 Mar 2019US 2019/0093526 A1Deere & Company
- Rocker arm assembly7 Feb 2019US 2019/0040769 A1Eaton Corporation
- Valve train assembly15 Feb 2018US 2018/0045084 A1Eaton Corporation
Most cited
By later US patents
- Control apparatus for intake and exhaust valves of an internal combustion engine32US 4,587,936 AHonda Giken Kogyo Kabushiki Kaisha · 1986
- Variable valve lift/timing mechanism28US 4,724,822 AGeneral Motors Corporation · 1988
- Variable lift valve train26US 4,986,227 A1991
- Electromagnetically operating setting device26US 5,117,213 AFEV Motorentechnik GmbH · 1992
- Dual displacement and expansion charge limited regenerative cam engine24US 5,140,953 A1992