Y10T 29/49274
Piston ring or piston packing making
Y10T29/49274 (Piston ring or piston packing making) appears on 130 US grants and 64 published applications in this corpus.
Search patents in Y10T- Granted patents
- 130
- Published applications
- 64
- Assignees
- 83
- Inventors
- 235
- Latest grant
- 11 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 3 |
| 2003 | 4 | 4 |
| 2004 | 2 | 8 |
| 2005 | 3 | 3 |
| 2006 | 6 | 4 |
| 2007 | 1 | 3 |
| 2008 | 3 | 4 |
| 2009 | 1 | 2 |
| 2010 | 3 | 2 |
| 2011 | 4 | 2 |
| 2012 | 1 | 4 |
| 2013 | 2 | 8 |
| 2014 | 2 | 4 |
| 2015 | 5 | 9 |
| 2016 | 5 | 3 |
| 2017 | 5 | 0 |
| 2018 | 2 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby11 May 2021US 11,002,217 B2Cummins Inc.
- Slide member, refrigerant compressor incorporating slide member, refrigerator and air conditioner7 Jul 2020US 10,704,541 B2Panasonic Intellectual Property Management Co., Ltd.
- Particular arrangement of a cooling duct connecting bore of a cooling duct5 Mar 2019US 10,221,807 B2KS Kolbenschmidt GmbH
- Compression piston ring for an internal combustion engine30 Oct 2018US 10,113,643 B2Ford Global Technologies, LLC
- Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby2 Jan 2018US 9,856,818 B2Cummins Inc.
- Stabilized engine casting core assembly, method for making an engine body, and engine body formed thereby8 Feb 2018US 2018/0038307 A1Cummins Inc.
- Nitride Coated Piston Ring15 Dec 2016US 2016/0363222 A1Mahle Engine Compents USA
- Low tension piston rings and method for manufacturing the same19 May 2016US 2016/0138714 A1Federal-Mogul Corporation
- Slide member, refrigerant compressor incorporating slide member, refrigerator and air conditioner21 Jan 2016US 2016/0017874 A1Panasonic Corporation
- Piston ring for internal combustion engines with increased fatigue strength, and method for producing same10 Dec 2015US 2015/0354702 A1Federal-Mogul Burscheid GmbH
Most cited
By later US patents
- Process for coating a metallic surface with a wear-resistant material78US 4,218,494 ACentro Richerche Fiat S.p.A. · 1980
- Method and system for forming a die frame and for transferring dies therewith50US 7,023,347 B2Symbol Technologies, Inc. · 2006
- Thermally applied coating of mechanically alloyed powders for piston rings39US 6,887,585 B2Federal-Mogul Burscheid GmbH · 2005
- Composite magnetic body, and magnetic element and method of manufacturing the same37US 6,888,435 B2Matsushita Electric Industrial Co., Ltd. · 2005
- Composite material made of rubber elastomer and polytetrafluoroethylene resin35US 4,133,927 AKaikin Kogyo Co., Ltd. · 1979