Y10S 55/13
Polyurethane filters
Y10S55/13 (Polyurethane filters) appears on 34 US grants and 2 published applications in this corpus.
Search patents in Y10S- Granted patents
- 34
- Published applications
- 2
- Assignees
- 25
- Inventors
- 55
- Latest grant
- 9 Mar 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multilayered long life filter using convoluted foam9 Mar 2010US 7,674,306 B2Visteon Global Technologies, Inc.
- Method and device for filtering contaminated air21 Dec 2004US 6,833,022 B2BSH Bosch und Siemens Hausgerate GmbH
- Method and apparatus for separating droplets for particles from a gas stream29 May 2001US 6,238,464 B1Dullien, Francis A.L.
- Pleated air filter and method for producing same6 Mar 2001US 6,197,079 B1Bridgeston Corporation
- Liquid-injected compressor with at least two cooperating compressor elements29 Aug 2000US 6,109,902 AAtlas Copco Airpower N.V.
Most cited
By later US patents
- Antimicrobial air filter and method of making same76US 5,288,298 A1994
- Heat and humidity recovery device for use with clothes dryer55US 4,137,647 A1979
- Multi-stage air filter44US 4,425,145 ATecumseh Products Company · 1984
- Adsorption filter with high air permeability44US 4,906,263 A1990
- Adsorption filter with high air permeability41US 4,981,501 A1991