B23P 15/002
Poppet valves
Official title: {poppet valves}
B23P15/002 (Poppet valves) appears on 89 US grants and 78 published applications in this corpus.
Search patents in B23P- Granted patents
- 89
- Published applications
- 78
- Assignees
- 53
- Inventors
- 171
- Latest grant
- 13 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 5 |
| 2013 | 2 | 3 |
| 2014 | 3 | 9 |
| 2015 | 5 | 10 |
| 2016 | 7 | 7 |
| 2017 | 9 | 7 |
| 2018 | 6 | 7 |
| 2019 | 7 | 0 |
| 2020 | 2 | 5 |
| 2021 | 2 | 8 |
| 2022 | 6 | 4 |
| 2023 | 8 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and device for manufacturing hollow, internally cooled valves13 Feb 2024US 11,898,473 B2Federal-Mogul Valvetrain GmbH
- Process and device for manufacturing hollow, internally cooled valves26 Dec 2023US 11,850,655 B2Federal-Mogul Valvetrain GmbH
- Method for manufacturing engine poppet valve26 Dec 2023US 11,850,690 B2Nittan Company, Limited
- Method for producing a hollow valve for internal combustion engines14 Nov 2023US 11,813,658 B2Federal-Mogul Valvetrain GmbH
- Poppet valve26 Sep 2023US 11,767,774 B2Eaton Intelligent Power Limited
- Systems and methods for engine valve cooling4 Sep 2025US 2025/0277461 A1Eaton Intelligent Power Limited
- Welded check valve19 Oct 2023US 2023/0332700 A1Entegris, Inc.
- Method for Manufacturing Engine Poppet Valve19 Jan 2023US 2023/0017343 A1Nittan Company, Limited
- Method and device for manufacturing hollow, internally cooled valves22 Dec 2022US 2022/0403761 A1Federal-Mogul Valvetrain GmbH
- Poppet valve device, canister vent solenoid and method for improving a poppet valve sealing efficiency13 Oct 2022US 2022/0324068 A1ETO Magnetic GmbH
Most cited
By later US patents
- Method of straightening wire rods of titanium and titanium alloy64US 6,077,369 ANippon Steel Corporation · 2000
- Composite valve for reciprocating engines and method for manufacturing the same35US 4,834,036 AKawasaki Jukogyo Kabushiki Kaisha · 1989
- Exhaust valve for an internal combustion engine, and a method of strengthening an annular valve seat area in an exhaust valve32US 10,443,456 B2Man Diesel & Turbo, Filial Af Man Diesel & Turbo SE, Tyskland · 2019
- Temperature control in an ultra light engine valve31US 5,458,314 AEaton Corporation · 1995
- Ultra light engine valve30US 5,413,073 AEaton Corporation · 1995