F01L 3/04
Coated valve members or valve-seats
F01L3/04 (Coated valve members or valve-seats) appears on 202 US grants and 177 published applications in this corpus.
Search patents in F01L- Granted patents
- 202
- Published applications
- 177
- Assignees
- 107
- Inventors
- 503
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 4 |
| 2002 | 7 | 5 |
| 2003 | 5 | 2 |
| 2004 | 4 | 5 |
| 2005 | 3 | 2 |
| 2006 | 2 | 9 |
| 2007 | 6 | 7 |
| 2008 | 1 | 2 |
| 2009 | 2 | 3 |
| 2010 | 3 | 3 |
| 2011 | 1 | 7 |
| 2012 | 2 | 3 |
| 2013 | 2 | 8 |
| 2014 | 6 | 9 |
| 2015 | 5 | 13 |
| 2016 | 11 | 11 |
| 2017 | 8 | 10 |
| 2018 | 5 | 11 |
| 2019 | 11 | 8 |
| 2020 | 8 | 15 |
| 2021 | 13 | 13 |
| 2022 | 11 | 9 |
| 2023 | 11 | 7 |
| 2024 | 7 | 5 |
| 2025 | 5 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sliding member and internal combustion engine7 Apr 2026US 12,595,754 B2Fukuda Metal Foil & Powder Co., Ltd.
- Sliding member and internal combustion engine provided with sliding member17 Mar 2026US 12,577,643 B2Fukuda Metal Foil & Powder Co., Ltd.
- Sliding member27 Jan 2026US 12,535,020 B2
- Hydrogen combustion engine and passenger car and commercial vehicle19 Aug 2025US 12,392,266 B2Mahle International GmbH
- Cylinder head blank and cylinder head manufacturing method15 Apr 2025US 12,276,216 B2Nissan Motor Co., Ltd.
- Method of manufacturing nitrided valve seat insert with supersaturated nitrogen surface layer and product thereof5 Mar 2026US 2026/0062786 A1L. E. Jones Company
- Multi-composition thermal management coating systems for combustion chamber components26 Feb 2026US 2026/0055714 A1Cummins Inc.
- Applicator for semi-fluid materials25 Dec 2025US 2025/0389212 A1Innio Waukesha Gas Engines Inc.
- Sliding member and internal combustion engine provided with sliding member31 Jul 2025US 2025/0243572 A1Fukuda Metal Foil & Powder Co., Ltd.
- Sliding member and internal combustion engine31 Jul 2025US 2025/0243792 A1Fukuda Metal Foil & Powder Co., Ltd.
Most cited
By later US patents
- Composite synthetic materials149US 4,960,643 A1990
- Fastening devices140US 5,332,348 A1994
- Ball and roller bearings and bearing components98US 5,067,826 A1991
- Internal combustion engines and engine components88US 4,974,498 A1990
- Corrosion and wear resistant alloy88US 6,702,905 B1L. E. Jones Company · 2004