Y10S 55/44
Pile and pile-type filter mediums
Y10S55/44 (Pile and pile-type filter mediums) appears on 23 US grants and 1 published applications in this corpus.
Search patents in Y10S- Granted patents
- 23
- Published applications
- 1
- Assignees
- 15
- Inventors
- 29
- Latest grant
- 1 Mar 2011
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 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 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Product and method of forming a gradient density fibrous filter1 Mar 2011US 7,896,941 B2AAF-McQuay Inc.
- Fluid filter system25 Jun 2002US 6,409,805 B1Products Unlimited, Inc.
- Removal of suspended fine particles from gases by turbulent deposition21 Nov 2000US 6,149,697 AInstitut Francais du Petrole
- Fluid filter, method of making and using thereof6 Jun 2000US 6,071,419 AProducts Unlimited, Inc.
- Removal of suspended fine particles from gases by turbulent deposition30 May 2000US 6,068,674 AInstitut Francais du Petrole
Most cited
By later US patents
- Self-supporting filter composite70US 5,472,467 A1995
- Meltblown fabric63US 5,273,565 AExxon Chemical Patents Inc. · 1993
- Filter element comprising glass fibers55US 4,917,714 AJames River Corporation · 1990
- Laminated filters49US 4,961,974 AAhlstrom Filtration, Inc. · 1990
- Fluid filter, method of making and using thereof47US 6,071,419 AProducts Unlimited, Inc. · 2000