B01D 2201/40
Special measures for connecting different parts of the filter
B01D2201/40 (Special measures for connecting different parts of the filter) appears on 1,803 US grants and 2,064 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,803
- Published applications
- 2,064
- Assignees
- 759
- Inventors
- 3,093
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 13 | 0 |
| 1989 | 17 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 16 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 16 | 0 |
| 1996 | 15 | 0 |
| 1997 | 23 | 0 |
| 1998 | 30 | 0 |
| 1999 | 25 | 0 |
| 2000 | 27 | 0 |
| 2001 | 30 | 15 |
| 2002 | 40 | 42 |
| 2003 | 32 | 59 |
| 2004 | 41 | 58 |
| 2005 | 37 | 62 |
| 2006 | 46 | 76 |
| 2007 | 40 | 66 |
| 2008 | 28 | 51 |
| 2009 | 30 | 88 |
| 2010 | 40 | 82 |
| 2011 | 52 | 55 |
| 2012 | 58 | 53 |
| 2013 | 42 | 66 |
| 2014 | 40 | 72 |
| 2015 | 42 | 68 |
| 2016 | 59 | 82 |
| 2017 | 67 | 92 |
| 2018 | 80 | 95 |
| 2019 | 87 | 104 |
| 2020 | 98 | 145 |
| 2021 | 73 | 130 |
| 2022 | 122 | 122 |
| 2023 | 107 | 94 |
| 2024 | 99 | 98 |
| 2025 | 87 | 91 |
| 2026 | 40 | 98 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2201/4046Means for avoiding false mounting of different partsIndexing code631
- B01D 2201/4084Snap or seeger ring connecting meansIndexing code489
- B01D 2201/4015Bayonet connecting meansIndexing code419
- B01D 2201/4023Means for connecting filter housings to supportsIndexing code315
- B01D 2201/4076Anti-rotational meansIndexing code262
- B01D 2201/4092Threaded sectionsIndexing code201
- B01D 2201/4007Use of cam or ramp systemsIndexing code161
- B01D 2201/4038For connecting at least two filtering elements togetherIndexing code54
All 10 subgroupsShow fewer
Recent patents
- Water filter cartridge and head having keyed engagement8 Sep 2026US 12,728,373 B2Culligan International Company
- Air purifier8 Sep 2026US 12,729,867 B2Shenzhen Chenbei Technology Co., Ltd.
- Filter adapter, filter system and installation method1 Sep 2026US 12,722,106 B1Koros Technology (Shenzhen) Co. Ltd
- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Filter assembly25 Aug 2026US 12,715,785 B2Samsung Electronics Co., Ltd.
- Water filter priming pump8 Oct 2026US 2026/0306973 A1
- Filter assemblies and related filter elements8 Oct 2026US 2026/0306974 A1Donaldson Company, Inc.
- Filter Assembly having a Locking Mechanism with Enhanced Engagement Features8 Oct 2026US 2026/0306975 A1Parker-Hannifin Corporation
- Filter arrangements for liquids and methods of use8 Oct 2026US 2026/0306976 A1Donaldson Company, Inc.
- Keyed flange filtration manifold interface8 Oct 2026US 2026/0306977 A1Midea Group Co., Ltd.
Most cited
By later US patents
- Stormwater filter assembly483US 8,110,099 B2Contech Stormwater Solutions Inc. · 2012
- Device and method for monitoring the integrity of filtering installations289US 7,048,775 B2Sartorius AG · 2006
- Quick-change filter cartridge and head therefor175US 4,735,716 ACuno Corporated · 1988
- Twist and lock filter housing with nontorsional anti-rotation stop160US 6,402,798 B1Nelson Industries, Inc. · 2002
- Mounting head with safety shut-off valve for replaceable filter cartridge153US 5,486,288 AElkay Manufacturing Company · 1996