B01D 35/12
Devices for taking out of action one or more units of multi-
Official title: Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
B01D35/12 (Devices for taking out of action one or more units of multi-) appears on 320 US grants and 176 published applications in this corpus.
Search patents in B01D- Granted patents
- 320
- Published applications
- 176
- Assignees
- 216
- Inventors
- 594
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 6 | 0 |
| 1981 | 8 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 10 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 12 | 0 |
| 2002 | 6 | 8 |
| 2003 | 9 | 6 |
| 2004 | 5 | 9 |
| 2005 | 2 | 5 |
| 2006 | 3 | 5 |
| 2007 | 1 | 3 |
| 2008 | 7 | 12 |
| 2009 | 1 | 2 |
| 2010 | 5 | 3 |
| 2011 | 3 | 3 |
| 2012 | 4 | 7 |
| 2013 | 9 | 7 |
| 2014 | 4 | 11 |
| 2015 | 4 | 4 |
| 2016 | 6 | 7 |
| 2017 | 4 | 2 |
| 2018 | 4 | 10 |
| 2019 | 6 | 6 |
| 2020 | 11 | 11 |
| 2021 | 9 | 8 |
| 2022 | 9 | 10 |
| 2023 | 9 | 14 |
| 2024 | 9 | 10 |
| 2025 | 9 | 9 |
| 2026 | 8 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Well plug debris capturing system28 Jul 2026US 12,692,757 B1Bandit Services, LLC
- Water purifying filter assembly19 May 2026US 12,629,616 B2Samsung Electronics Co., Ltd.
- Faucet water purifier and filtering device for faucet water purifier19 May 2026US 12,629,618 B2
- Rotary filter and associated filtering method31 Mar 2026US 12,589,340 B2Gaudfrin
- Fluid drain system for filter chamber access in heat rejection unit30 Jul 2026US 2026/0216625 A1Microsoft Technology Licensing, LLC
- Filter system equipped with filter mount and filter inventory7 May 2026US 2026/0124563 A1Caterpillar Inc.
- Filter system19 Feb 2026US 2026/0048347 A1
- System and method for automatically replacing cartridge filter5 Feb 2026US 2026/0034483 A1Samsung SDI.Co., Ltd.
- Post filter set configuration for a water treatment operation and maintenance methods27 Nov 2025US 2025/0360442 A1ATEC Water Systems, LLC
Most cited
By later US patents
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Quick-change filter cartridge and head therefor130US 4,877,521 ACuno Incorporated · 1989
- Vibratory screening machine and non-clogging wear-reducing screen assembly therefor125US 5,221,008 ADerrick Manufacturing Corporation · 1993
- Waste oil management system102US 5,336,396 A1994
- Lubrication fluid filtering and cooling assembly101US 4,324,213 ACummins Engine Company, Inc. · 1982