Y10T 29/49252
Multi-element piston making
Y10T29/49252 (Multi-element piston making) appears on 150 US grants and 109 published applications in this corpus.
Search patents in Y10T- Granted patents
- 150
- Published applications
- 109
- Assignees
- 89
- Inventors
- 258
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 6 |
| 2003 | 10 | 2 |
| 2004 | 1 | 7 |
| 2005 | 2 | 4 |
| 2006 | 4 | 1 |
| 2007 | 1 | 5 |
| 2008 | 3 | 7 |
| 2009 | 2 | 9 |
| 2010 | 3 | 7 |
| 2011 | 7 | 9 |
| 2012 | 12 | 15 |
| 2013 | 9 | 9 |
| 2014 | 7 | 11 |
| 2015 | 8 | 8 |
| 2016 | 8 | 4 |
| 2017 | 8 | 2 |
| 2018 | 6 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Piston made using additive manufacturing techniques29 Oct 2024US 12,129,811 B2Tenneco Inc.
- Piston and method of making a piston7 Apr 2020US 10,610,984 B2Tenneco Inc.
- Piston and method of making a piston25 Sep 2018US 10,082,102 B2Federal-Mogul Corporation
- Method for the production of a piston for an internal combustion engine4 Sep 2018US 10,065,277 B2Mahle International GmbH
- Steel piston with filled gallery24 Apr 2018US 9,951,714 B2Federal-Mogul Corporation
- Piston and method of making a piston28 Feb 2019US 2019/0061074 A1Tenneco Inc.
- Piston of two-piece construction for an internal combustion engine16 Nov 2017US 2017/0328302 A1KS Kolbenschmidt GmbH
- Piston and method of making a piston16 Mar 2017US 2017/0072518 A1Federal-Mogul Corporation
- Production of Multi-Part, Joined Valve Components in Hydraulic Applications With Joint Sealing Profiles25 Aug 2016US 2016/0245360 A1GKN Sinter Metals Holding GmbH
- Method for the production of a piston for an internal combustion engine11 Aug 2016US 2016/0229007 A1Mahle International GmbH
Most cited
By later US patents
- Manufacture of pistons43US 4,651,631 AAe PLC · 1987
- Method for the manufacture of a two piece piston and piston40US 5,144,923 AMetal Leve S.A. Industria e Comercio · 1992
- Process of joining a ceramic insert which is adapted to be embedded in a light metal casting for use in internal combustion engines38US 4,495,684 AKarl Schmidt GmbH · 1985
- Piston for hydrostatic axial and radial piston machines and method for the manufacture thereof35US 5,216,943 AHydromatik GmbH · 1993
- Method for fabricating chip type solid electrolytic capacitor and apparatus for performing the same method34US 6,616,713 B2NEC Tokin Corporation · 2003