F16D 69/021
Containing asbestos
Official title: {containing asbestos}
F16D69/021 (Containing asbestos) appears on 30 US grants and 1 published applications in this corpus.
Search patents in F16D- Granted patents
- 30
- Published applications
- 1
- Assignees
- 19
- Inventors
- 50
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Wheel disc brake assembly24 May 2022US 11,338,615 B2Mando Corporation
- Organic friction material composition for use to produce friction linings5 Oct 1993US 5,250,588 ACeram-Sna Inc.
- Process for the manufacture of frictional elements and frictional elements produced thereby16 May 1989US 4,831,067 A
- Fibrous material-based friction member14 Apr 1987US 4,657,951 AGun Ei Chemical Industry Co., Ltd.
- Motor vehicle clutch facing and friction property modifier therefor31 May 1983US 4,385,682 AAisin Kako Kabushiki Kaisha
Most cited
By later US patents
- Friction material65US 4,324,706 AAdebono Brake Industry Co., Ltd. · 1982
- Brake pad with integral organic backplate57US 4,173,681 ASociete Abex Pagid Equipement S.A. · 1979
- Fibrous material-based friction member48US 4,657,951 AGun Ei Chemical Industry Co., Ltd. · 1987
- Less abrasive composition railroad brake shoe material41US 3,959,194 AJohns Manville · 1976
- Friction facing with porous sheet base32US 4,045,608 A1977