B01J 47/133
Precoat filters
B01J47/133 (Precoat filters) appears on 41 US grants and 8 published applications in this corpus.
Search patents in B01J- Granted patents
- 41
- Published applications
- 8
- Assignees
- 24
- Inventors
- 70
- Latest grant
- 17 Jan 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 4 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 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 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Protein adsorbent17 Jan 2017US 9,545,627 B2Asahi Kasei Chemicals Corporation
- Filter sheet and process for purifying photoresist composition employing the filter sheet11 May 2004US 6,733,677 B2Cuno Incorporated
- Methods of treating commercial grade preservatives to remove undesirable odors and flavors30 Dec 2003US 6,669,848 B2Tillin, Inc.
- Process for producing film forming resins for photoresist compositions26 Aug 2003US 6,610,465 B2Clariant Finance (BVI) Limited
- Process for purifying photoresist composition employing a filter sheet10 Jun 2003US 6,576,139 B1
- Sorbent cartridge for dialysate regeneration30 Sep 2021US 2021/0299340 A1Fresenius Medical Care Holdings, Inc.
- Protein adsorbent9 Mar 2017US 2017/0065962 A1Asahi Kasei Chemicals Corporation
- Protein adsorbent4 Dec 2014US 2014/0357742 A1Asahi Kasei Chemicals Corporation
- Method for manufacturing chemical filter29 Sep 2005US 2005/0212174 A1Nichias Corporation
- Methods of treating commercial grade preservatives to remove undesirable odors and flavors31 Jul 2003US 2003/0141247 A1Tillin, Inc.
Most cited
By later US patents
- Method and apparatus for filtration with plural ultraviolet treatment stages112US 5,236,595 AInternational Environmental Systems, Inc., USA · 1993
- Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode controller62US 5,190,659 AInternational Environmental Systems, Inc. · 1993
- Spiral wrapped fluid treatment element57US 5,039,413 APall Corporation · 1991
- Method and apparatus for treatment of aqueous solutions55US 5,346,624 AThe Graver Company · 1994
- Purification of liquids with treated polyester fibers54US 4,747,955 AThe Graver Company · 1988