D21H 13/44
Flakes
Official title: Flakes, e.g. mica, vermiculite
D21H13/44 (Flakes) appears on 64 US grants and 27 published applications in this corpus.
Search patents in D21H- Granted patents
- 64
- Published applications
- 27
- Assignees
- 28
- Inventors
- 97
- Latest grant
- 20 Feb 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 0 |
| 2010 | 2 | 4 |
| 2011 | 4 | 7 |
| 2012 | 3 | 1 |
| 2013 | 3 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 3 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Acoustical ceiling tile20 Feb 2018US 9,896,807 B2USG Interiors, Inc.
- High limiting oxygen index electrical insulation laminates19 Dec 2017US 9,844,928 B2E. I. Du Pont de Nemours and Company
- Pellet comprising aramid pulp and filler material5 May 2015US 9,023,178 B2Teijin Aramid B.V.
- Strong nanopaper25 Feb 2014US 8,658,287 B2Tetra Laval Holdings & Finance S. A.
- Semiconductor manufacture component9 Apr 2013US 8,415,006 B2E. I. Du Pont de Nemours and Company
- Acoustical ceiling tile30 Mar 2017US 2017/0089014 A1USG Interiors, Inc.
- High limiting oxygen index electrical insulation laminates17 Dec 2015US 2015/0360452 A1E. I. Du Pont de Nemours and Company
- Electrical Insulating Paper26 Mar 2015US 2015/0083353 A1Pacon Corporation
- Inorganic fibrous regularly shaped article and method for adjusting hardness thereof5 Feb 2015US 2015/0033986 A1Nichias Corporation
- Pellet comprising aramid pulp and filler material9 Oct 2014US 2014/0299285 A1Teijin Aramid B.V.
Most cited
By later US patents
- Intumescent sheet material103US 4,305,992 AMinnesota Mining and Manufacturing Company · 1981
- Method of making a low density frothed mineral wool95US 5,013,405 AUSG Interiors, Inc. · 1991
- High vinyl polybutadiene or styrene-butadiene copolymer93US 4,397,994 AJapan Synthetic Rubber Co., Ltd. · 1983
- Intumescent sheet material containing low density fillers72US 4,385,135 AMinnesota Mining and Manufacturing Company · 1983
- Mica and vermiculite paper and its preparation64US 5,126,013 AArmstrong World Industries, Inc. · 1992