Y10T 29/49307
Composite or hollow valve stem or head making
Y10T29/49307 (Composite or hollow valve stem or head making) appears on 77 US grants and 49 published applications in this corpus.
Search patents in Y10T- Granted patents
- 77
- Published applications
- 49
- Assignees
- 45
- Inventors
- 167
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 4 | 6 |
| 2006 | 4 | 2 |
| 2007 | 0 | 3 |
| 2008 | 2 | 3 |
| 2009 | 3 | 4 |
| 2010 | 3 | 1 |
| 2011 | 2 | 2 |
| 2012 | 1 | 7 |
| 2013 | 2 | 4 |
| 2014 | 6 | 6 |
| 2015 | 3 | 1 |
| 2016 | 4 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Poppet valve24 Feb 2026US 12,560,110 B2Eaton Intelligent Power Limited
- Ball plunger for use in a hydraulic lash adjuster and method of making same9 Apr 2019US 10,253,659 B2Eaton Corporation
- Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate12 Dec 2017US 9,840,948 B2Nittan Valve Co., Ltd.
- Method of charging a hollow valve with metallic sodium12 Sep 2017US 9,757,826 B2Fuji Hollow Valve Inc.
- Method for production of valve head portion of hollow engine valve and hollow engine valve20 Sep 2016US 9,447,711 B2Fuji Hollow Valve Inc.
- Poppet Valve11 Jan 2024US 2024/0011567 A1Eaton Intelligent Power Limited
- Method for supplying inert gas into poppet valve intermediate and apparatus for supplying inert gas into poppet valve intermediate28 Sep 2017US 2017/0276031 A1Nittan Valve Co., Ltd.
- Ball plunger for use in a hydraulic lash adjuster and method of making same6 Oct 2016US 2016/0290178 A1Eaton Corporation
- Method of charging a hollow valve with metallic sodium and an apparatus therefor29 Sep 2016US 2016/0279746 A1Fuji Oozx Inc.
- Method of manufacturing a valve for an internal combustion engine1 Jan 2015US 2015/0000130 A1Nittan Valve Co., Ltd.
Most cited
By later US patents
- Valve needle for an electromagnetically actuated valve and process for manufacturing the same45US 5,996,227 ARobert Bosch GmbH · 1999
- Temperature control in an ultra light engine valve31US 5,458,314 AEaton Corporation · 1995
- Ultra light engine valve30US 5,413,073 AEaton Corporation · 1995
- Wear resistant fuel injector plunger assembly28US 5,409,165 ACummins Engine Company, Inc. · 1995
- Poppet valve26US 4,073,474 AToyota Jidosha Kogyo Kabushiki Kaisha · 1978