F01L 1/28
Valve-gear or valve arrangements: characterised by the provision of coaxial valves
Official title: characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
F01L1/28 (Valve-gear or valve arrangements: characterised by the provision of coaxial valves) appears on 76 US grants and 41 published applications in this corpus.
Search patents in F01L- Granted patents
- 76
- Published applications
- 41
- Assignees
- 31
- Inventors
- 91
- Latest grant
- 12 Oct 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 0 | 0 |
| 2003 | 2 | 1 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 3 | 6 |
| 2008 | 2 | 5 |
| 2009 | 4 | 0 |
| 2010 | 3 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 2 | 3 |
| 2015 | 0 | 2 |
| 2016 | 3 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 5 |
| 2019 | 0 | 1 |
| 2020 | 6 | 3 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Valve arrangement and valve guide12 Oct 2021US 11,143,146 B2Volvo Truck Corporation
- Internal combustion engine22 Jun 2021US 11,041,456 B2Quest Engines, LLC
- Valve arrangement6 Oct 2020US 10,794,334 B2Volvo Truck Corporation
- Valve arrangement and valve guide11 Aug 2020US 10,738,662 B2Volvo Truck Corporation
- Internal combustion engine17 Mar 2020US 10,590,813 B2Quest Engines, LLC
- Coaxial valve system16 Oct 2025US 2025/0320827 A1
- Valve arrangement and valve guide22 Oct 2020US 2020/0332746 A1Volvo Truck Corporation
- A gas feeding arrangement24 Sep 2020US 2020/0300182 A1Volvo Truck Corporation
- Valve arrangement and valve guide9 Jan 2020US 2020/0011213 A1Volvo Truck Corporation
- Valve arrangement21 Mar 2019US 2019/0085792 A1Volvo Truck Corporation
Most cited
By later US patents
- Marine hulls and drives97US 7,984,684 B22011
- Systems and methods for control of turbine-generator via valve deactivation in a split exhaust engine system34US 9,518,506 B2Ford Global Technologies, LLC · 2016
- Pneumatically actuated valve for internal combustion engines27US 7,140,332 B22006
- Device and method in combustion engines25US 6,138,616 AAB Volvo · 2000
- Poppet valve assembly with apertures23US 4,836,154 A1989