B01D 25/24
Cell-type roll filters
B01D25/24 (Cell-type roll filters) appears on 88 US grants and 63 published applications in this corpus.
Search patents in B01D- Granted patents
- 88
- Published applications
- 63
- Assignees
- 34
- Inventors
- 191
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 6 |
| 2007 | 1 | 3 |
| 2008 | 1 | 11 |
| 2009 | 1 | 1 |
| 2010 | 2 | 5 |
| 2011 | 6 | 3 |
| 2012 | 7 | 8 |
| 2013 | 6 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 4 | 1 |
| 2018 | 3 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 4 |
| 2023 | 2 | 2 |
| 2024 | 0 | 0 |
| 2025 | 3 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Formed filter media10 Mar 2026US 12,569,797 B2Cummins Filtration Inc.
- Separation component for a filter element10 Feb 2026US 12,544,704 B2Mann+Hummel GmbH
- Advanced passive wedge wire screen intake9 Dec 2025US 12,491,455 B2Johnson Screens, Inc.
- Filters principally for use in connection with swimming pools and spas4 Nov 2025US 12,458,911 B2Zodiac Pool Systems LLC
- Fluid filtration apparatuses, systems, and methods9 Sep 2025US 12,409,397 B2Donaldson Company, Inc.
- Filter assemblies utilizing full cross-section21 May 2026US 2026/0138067 A1Atmus Filtration IP Inc.
- Advanced passive wedge wire screen intake6 Apr 2023US 2023/0103787 A1Aqseptence Group, Inc.
- Formed filter media19 Jan 2023US 2023/0018748 A1Cummins Filtration Inc.
- Separation Component for a Filter Element25 Aug 2022US 2022/0266188 A1Mann+Hummel GmbH
- Filter assemblies utilizing full cross-section21 Apr 2022US 2022/0118386 A1Cummins Filtration IP, Inc.
Most cited
By later US patents
- Inline filter apparatus526US 5,820,646 ADonaldson Company, Inc. · 1998
- Filter element incorporating a handle member390US 6,235,195 B1Donaldson Company, Inc. · 2001
- Conical filter341US 5,902,364 ADonaldson Company, Inc. · 1999
- Fluid filtering device309US 4,589,983 ADonaldson Company, Inc. · 1986
- Rolled liquid filter using fluted media291US 5,895,574 ADonaldson Company, Inc. · 1999