Y10S 55/39
Electrets separator
Y10S55/39 (Electrets separator) appears on 205 US grants and 68 published applications in this corpus.
Search patents in Y10S- Granted patents
- 205
- Published applications
- 68
- Assignees
- 92
- Inventors
- 298
- Latest grant
- 10 Feb 2015
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 8 | 0 |
| 1997 | 15 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 11 | 3 |
| 2002 | 14 | 13 |
| 2003 | 21 | 10 |
| 2004 | 11 | 9 |
| 2005 | 6 | 7 |
| 2006 | 4 | 5 |
| 2007 | 9 | 8 |
| 2008 | 3 | 3 |
| 2009 | 5 | 4 |
| 2010 | 3 | 1 |
| 2011 | 7 | 3 |
| 2012 | 3 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Air filter material using laminated electret nonwoven fabric10 Feb 2015US 8,951,338 B2Jnc Corporation
- Dust removal device13 Jan 2015US 8,932,380 B2NEC Display Solutions, Ltd.
- Method and apparatus for electric4 Dec 2012US 8,323,554 B2
- Multistage electrically charged agglomeration system1 May 2012US 8,167,984 B1
- Air filter formed by slit and expanded layers of electrostatically enhanced material31 Jan 2012US 8,105,425 B2Columbus Industries, Inc.
- Dust removal device18 Jul 2013US 2013/0180222 A1NEC Display Solutions, Ltd.
- Air filter material using laminated electret nonwoven fabric26 Apr 2012US 2012/0097037 A1Jnc Corporation
- Method and apparatus for electric20 Oct 2011US 2011/0254384 A1
- Air filter formed by slit and expanded layers of electrostatically enhanced material21 Jul 2011US 2011/0174157 A1Columbus Industries, Inc.
- Static dissipative filtration media30 Jun 2011US 2011/0155658 A1Cummins Filtration IP, Inc.
Most cited
By later US patents
- Melt-blown fibrous electrets387US 4,215,682 AMinnesota Mining and Manufacturing Company · 1980
- Method of charging electret filter media289US 5,496,507 AMinnesota Mining and Manufacturing Company · 1996
- Method for manufacturing an electret filter medium243US 4,588,537 AMinnesota Mining and Manufacturing Company · 1986
- Method of making fibrous electrets241US 4,375,718 ASurgikos, Inc. · 1983
- Fibrous webs having enhanced electret properties174US 5,908,598 AMinnesota Mining and Manufacturing Company · 1999