F01M 9/103
Of valve stem and guide
Official title: {of valve stem and guide}
F01M9/103 (Of valve stem and guide) appears on 24 US grants and 16 published applications in this corpus.
Search patents in F01M- Granted patents
- 24
- Published applications
- 16
- Assignees
- 23
- Inventors
- 60
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Internal combustion engine22 Sep 2026US 12,742,404 B2Toyota Jidosha Kabushiki Kaisha
- Variable valve device17 Jun 2025US 12,331,668 B1Suzuki Motor Corporation
- Arrangement15 Aug 2023US 11,725,618 B2Woodward L'Orange GmbH
- Sintered alloy valve guide and method of producing sintered alloy valve guide8 Aug 2023US 11,719,138 B2Tpr Co., Ltd.
- Valve spring retainer incorporating lubrication oil trap15 Nov 2022US 11,499,451 B2Cummins Power Generation Inc.
- Hydrogen combustion engine valve sealing25 Jun 2026US 2026/0176990 A1DAF Trucks N. V.
- Detachable and lubricable packing gland for electric large-caliber butterfly valve21 May 2026US 2026/0139614 A1Huaneng Qinbei Power Generation Co., Ltd.
- Internal combustion engine22 Jan 2026US 2026/0022648 A1Toyota Jidosha Kabushiki Kaisha
- Variable valve device5 Jun 2025US 2025/0179948 A1Suzuki Motor Corporation
- Sintered alloy valve guide and method of producing sintered alloy valve guide27 Apr 2023US 2023/0127085 A1Tpr Co., Ltd.
Most cited
By later US patents
- Valve cover29US 5,492,086 ADurox Company, Inc. · 1996
- Tappet sleeve lubrication18US 4,745,888 AGeneral Motors Corporation · 1988
- Rocker arm assembly lubrication16US 5,979,383 AGeneral Motors Corporation · 1999
- Supercharged internal combustion engines14US 3,998,199 AThe French State · 1976
- Lubricant supply for internal combustion engine6US 5,732,672 ASanshin Kogyo Kabushiki Kaisha · 1998