B01D 29/237
With wound sheets
Official title: {with wound sheets}
B01D29/237 (With wound sheets) appears on 23 US grants and 19 published applications in this corpus.
Search patents in B01D- Granted patents
- 23
- Published applications
- 19
- Assignees
- 9
- Inventors
- 31
- Latest grant
- 6 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 3 | 3 |
| 2012 | 5 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Filter element and filter module comprising same6 Sep 2022US 11,433,325 B2Pall Corporation
- Filter cartridge and/or multiple-diameter multiple stage filter coalescer separator1 Feb 2022US 11,235,266 B2Parker-Hannifin Corporation
- Filter cartridge and/or multiple-diameter multiple stage filter coalescer separator1 Sep 2020US 10,758,850 B2Parker-Hannifin Corporation
- Filter device and filter element6 Aug 2019US 10,369,499 B2Rt-Filtertechnik GmbH
- Filter cartridge and manufacturing method thereof13 Nov 2018US 10,124,567 B2Pro-Pure Inc.
- Filter11 Jul 2024US 2024/0226780 A13M Innovative Properties Company
- Non-circular filter core and rolling method thereof25 Nov 2021US 2021/0362087 A1Pro-Pure Inc.
- Filter cartridge and/or multiple-diameter multiple stage filter coalescer separator5 Nov 2020US 2020/0346141 A1Parker-Hannifin Corporation
- Filter element and filter module comprising same12 Mar 2020US 2020/0078712 A1Pall Corporation
- Filter cartridge and/or multiple-diameter multiple stage filter coalescer separator6 Feb 2020US 2020/0038789 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Filter with an open-celled elastomer foam22US 3,947,362 A1976
- Ribbon filter apparatus21US 4,555,342 A1985
- Filter structure18US 8,192,623 B2Wix Filtration Corp LLC · 2012
- Apparatus for separating solids from liquids or gas17US 4,048,074 ABASF SE · 1977
- Method of and apparatus for producing hollow-cylindrically shaped fibrous articles14US 4,100,009 AChisso Corporation · 1978