B24B 19/11
For grinding the circumferential surface of rings
Official title: for grinding the circumferential surface of rings, e.g. piston rings (grinding end faces B24B7/16, B24B7/17)
B24B19/11 (For grinding the circumferential surface of rings) appears on 16 US grants and 8 published applications in this corpus.
Search patents in B24B- Granted patents
- 16
- Published applications
- 8
- Assignees
- 10
- Inventors
- 26
- Latest grant
- 30 Nov 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Piston ring having a stepped running surface30 Nov 2021US 11,187,322 B2Federal-Mogul Burscheid GmbH
- Piston ring26 Jun 2018US 10,006,546 B2Riken
- Methods and systems for marring fiber optic substrates4 Feb 2014US 8,641,478 B2Lumitex, Inc.
- Methods and systems for marring fiber optic substrates4 Oct 2011US 8,029,337 B2Lumitex, Inc.
- Methods and systems for marring fiber optic substrates16 Nov 2010US 7,833,087 B2Lumitex, Inc.
- Piston ring having a stepped running surface14 Nov 2019US 2019/0346043 A1Federal-Mogul Burscheid GmbH
- Piston ring18 Aug 2016US 2016/0238132 A1Riken
- Methods and systems for marring fiber optic substrates2 May 2013US 2013/0109280 A1Lumitex, Inc.
- Methods and systems for marring fiber optic substrates19 Jan 2012US 2012/0015588 A1
- Methods and systems for marring fiber optic substrates10 Feb 2011US 2011/0034110 A1Lumitex, Inc.
Most cited
By later US patents
- Piston ring assembly and method of making same18US 4,123,072 ADana Corporation · 1978
- Method for the fine machining of piston rings and apparatus for carrying out same8US 5,775,978 AAE Goetze GmbH · 1998
- Oil ring assembly5US 5,161,805 ARiken · 1992
- Apparatus for grinding finish of piston rings4US 4,330,963 ARiken · 1982
- Ring manufacture, productive of face contact seal3US 3,971,165 AInternational Harvester Company · 1976