B01D 27/00
Cartridge filters of the throw-away type
B01D27/00 (Cartridge filters of the throw-away type) appears on 1,096 US grants and 1,084 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,096
- Published applications
- 1,084
- Assignees
- 429
- Inventors
- 1,963
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 15 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 6 | 0 |
| 1984 | 10 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 16 | 0 |
| 1988 | 16 | 0 |
| 1989 | 20 | 0 |
| 1990 | 12 | 0 |
| 1991 | 18 | 0 |
| 1992 | 15 | 0 |
| 1993 | 13 | 0 |
| 1994 | 14 | 0 |
| 1995 | 11 | 0 |
| 1996 | 12 | 0 |
| 1997 | 24 | 0 |
| 1998 | 23 | 0 |
| 1999 | 23 | 0 |
| 2000 | 25 | 0 |
| 2001 | 23 | 8 |
| 2002 | 20 | 28 |
| 2003 | 21 | 27 |
| 2004 | 14 | 23 |
| 2005 | 23 | 33 |
| 2006 | 13 | 51 |
| 2007 | 16 | 39 |
| 2008 | 14 | 34 |
| 2009 | 13 | 33 |
| 2010 | 18 | 32 |
| 2011 | 19 | 24 |
| 2012 | 24 | 34 |
| 2013 | 22 | 56 |
| 2014 | 30 | 53 |
| 2015 | 29 | 50 |
| 2016 | 36 | 65 |
| 2017 | 47 | 51 |
| 2018 | 43 | 60 |
| 2019 | 54 | 55 |
| 2020 | 52 | 71 |
| 2021 | 47 | 49 |
| 2022 | 50 | 45 |
| 2023 | 41 | 50 |
| 2024 | 42 | 48 |
| 2025 | 36 | 39 |
| 2026 | 19 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 27/08Construction of the casing630
- B01D 27/10Safety devices294
- B01D 27/04Cartridge filters of the throw-away type: with cartridges made of a piece276
- B01D 27/14Cartridge filters of the throw-away type: having more than one filtering element175
- B01D 27/005Making filter elements not provided for elsewhere117
- B01D 27/02Cartridge filters of the throw-away type: with cartridges made from a mass78
Recent patents
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Filter assembly25 Aug 2026US 12,716,481 B2Filtran LLC
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Modular graphene oxide-based microbial fuel filter and process of making and using same28 Jul 2026US 12,691,397 B2The United States of America as represented by the Secretary of the Air Force
- Hand tool and filter apparatus21 Jul 2026US 12,686,026 B2Milwaukee Electric Tool Corporation
- Filter arrangements for liquids and methods of use8 Oct 2026US 2026/0306976 A1Donaldson Company, Inc.
- Filter system for the removal of volatile organosulfur compounds (voscs) from indoor air8 Oct 2026US 2026/0306980 A1Air Tech Group, SLU
- Filter arrangements for liquids and methods of use1 Oct 2026US 2026/0295475 A1Donaldson Company, Inc.
- Filter cartridge27 Aug 2026US 2026/0250158 A1Gopala AG
- Spin-On Filter with Single Piece Housing and Snap-Together Assembly20 Aug 2026US 2026/0241311 A1Baldwin Filters, Inc.
Most cited
By later US patents
- Fluid filter system524US 8,272,516 B2Advanced Filtration Systems Inc. · 2012
- Conical filter341US 5,902,364 ADonaldson Company, Inc. · 1999
- Filter material construction and method335US 5,672,399 ADonaldson Company, Inc. · 1997
- Air filter cartridge305US 6,966,940 B2Donaldson Company, Inc. · 2005
- Rolled liquid filter using fluted media291US 5,895,574 ADonaldson Company, Inc. · 1999