F02F 3/003
The parts being connected by casting, brazing, welding or clamping
Official title: {the parts being connected by casting, brazing, welding or clamping}
F02F3/003 (The parts being connected by casting, brazing, welding or clamping) appears on 299 US grants and 302 published applications in this corpus.
Search patents in F02F- Granted patents
- 299
- Published applications
- 302
- Assignees
- 95
- Inventors
- 438
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 2 |
| 2002 | 4 | 4 |
| 2003 | 7 | 2 |
| 2004 | 5 | 9 |
| 2005 | 1 | 3 |
| 2006 | 3 | 5 |
| 2007 | 0 | 5 |
| 2008 | 2 | 10 |
| 2009 | 1 | 10 |
| 2010 | 3 | 22 |
| 2011 | 11 | 21 |
| 2012 | 14 | 28 |
| 2013 | 14 | 19 |
| 2014 | 17 | 24 |
| 2015 | 14 | 21 |
| 2016 | 18 | 26 |
| 2017 | 15 | 19 |
| 2018 | 14 | 23 |
| 2019 | 24 | 16 |
| 2020 | 19 | 15 |
| 2021 | 10 | 1 |
| 2022 | 5 | 7 |
| 2023 | 4 | 5 |
| 2024 | 4 | 2 |
| 2025 | 2 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-part piston construction for an opposed-piston engine29 Sep 2026US 12,747,713 B2General Atomics Aeronautical Systems, Inc.
- Steel piston for an internal combustion engine24 Mar 2026US 12,584,453 B2Federal-Mogul Nurnberg GmbH
- Piston assembly with opposing injection regions for an opposed-piston engine3 Jun 2025US 12,320,312 B2Achates Power, Inc.
- Method for making a lightweight internal combustion engine piston with micro chambers4 Feb 2025US 12,215,652 B1Lean-Burn Combustion, Inc.
- Piston blank, piston and method3 Sep 2024US 12,078,247 B2KS Kolbenschmidt GmbH
- Piston and engine9 Jul 2026US 2026/0194026 A1Baudouin (Weifang) Power Co., Ltd.
- A piston head for combustion cylinder, and a cooling gallery for a piston head of a combustion cylinder9 Jul 2026US 2026/0194027 A1Cummins Inc.
- Piston Blank, Piston, And Method17 Jul 2025US 2025/0230779 A1KS Kolbenschmidt GmbH
- Steel piston for an internal combustion engine26 Sep 2024US 2024/0318610 A1Federal-Mogul Nurnberg GmbH
- Method of designing and producing fiber-reinforced polymer pistons29 Feb 2024US 2024/0066644 A1AWA Forged Composites, LLC
Most cited
By later US patents
- Piston for internal combustion engines56US 4,581,983 AKarl Schmidt GmbH · 1986
- Oil cooled piston47US 4,286,505 ACaterpillar Tractor Co. · 1981
- Oil-cooled piston for a heat engine43US 4,011,797 ADAMPERS Societe Anonyme · 1977
- Structurally lightened piston utilizable especially in an internal combustion engine42US 4,662,319 AS.E.M.T., S.A. · 1987
- Coolable trunk piston for internal combustion engines40US 5,052,280 AMahle GmbH · 1991