D21H 5/205
Acrylic fibres
Official title: {acrylic fibres}
D21H5/205 (Acrylic fibres) appears on 4 US grants and 1 published applications in this corpus.
Search patents in D21H- Granted patents
- 4
- Published applications
- 1
- Assignees
- 3
- Inventors
- 7
- Latest grant
- 9 Mar 1993
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 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 |
By publication year. Applications have been published since 2001.
Recent patents
- Fibrillated fibers and articles made therefrom9 Mar 1993US 5,192,604 AAmerican Cyanamid Company
- Fibrillated fibers and articles made therefrom19 Jan 1993US 5,180,630 AAmerican Cyanamid Company
- Fibrillated fibers and articles made therefrom29 May 1990US 4,929,502 AAmerican Cyanamid Company
- Porous carbon fuel cell substrates and method of manufacture21 Mar 1978US 4,080,413 AUnited Technologies Corporation
Most cited
By later US patents
- Fibrillated fibers and articles made therefrom100US 5,180,630 AAmerican Cyanamid Company · 1993
- Fibrillated fibers and articles made therefrom46US 4,929,502 AAmerican Cyanamid Company · 1990
- Porous carbon fuel cell substrates and method of manufacture16US 4,080,413 AUnited Technologies Corporation · 1978
- Fibrillated fibers and articles made therefrom12US 5,192,604 AAmerican Cyanamid Company · 1993