B01D 35/00
Filtering devices having features not specifically covered by groups b01d24/00 - b01d33/00
Official title: Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
B01D35/00 (Filtering devices having features not specifically covered by groups b01d24/00 - b01d33/00) appears on 7,091 US grants and 6,454 published applications in this corpus.
Search patents in B01D- Granted patents
- 7,091
- Published applications
- 6,454
- Assignees
- 3,038
- Inventors
- 12,257
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 76 | 0 |
| 1977 | 88 | 0 |
| 1978 | 68 | 0 |
| 1979 | 46 | 0 |
| 1980 | 61 | 0 |
| 1981 | 97 | 0 |
| 1982 | 79 | 0 |
| 1983 | 77 | 0 |
| 1984 | 73 | 0 |
| 1985 | 98 | 0 |
| 1986 | 92 | 0 |
| 1987 | 101 | 0 |
| 1988 | 91 | 0 |
| 1989 | 101 | 0 |
| 1990 | 102 | 0 |
| 1991 | 78 | 0 |
| 1992 | 105 | 0 |
| 1993 | 92 | 0 |
| 1994 | 85 | 0 |
| 1995 | 81 | 0 |
| 1996 | 112 | 0 |
| 1997 | 116 | 0 |
| 1998 | 129 | 0 |
| 1999 | 116 | 0 |
| 2000 | 109 | 0 |
| 2001 | 140 | 46 |
| 2002 | 135 | 119 |
| 2003 | 121 | 182 |
| 2004 | 118 | 191 |
| 2005 | 117 | 177 |
| 2006 | 93 | 172 |
| 2007 | 102 | 160 |
| 2008 | 91 | 154 |
| 2009 | 78 | 179 |
| 2010 | 99 | 147 |
| 2011 | 116 | 161 |
| 2012 | 120 | 184 |
| 2013 | 117 | 250 |
| 2014 | 143 | 294 |
| 2015 | 180 | 332 |
| 2016 | 208 | 336 |
| 2017 | 242 | 340 |
| 2018 | 271 | 370 |
| 2019 | 337 | 387 |
| 2020 | 342 | 462 |
| 2021 | 321 | 366 |
| 2022 | 339 | 353 |
| 2023 | 288 | 307 |
| 2024 | 277 | 297 |
| 2025 | 259 | 286 |
| 2026 | 164 | 202 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 35/14Safety devices specially adapted for filtration2,357
- B01D 35/30Filter housing constructions2,311
- B01D 35/02Filters adapted for location in special places1,753
- B01D 35/26Filters with built-in pumps filters provided with a pump mounted in or533
- B01D 35/06Filters making use of electricity or magnetism528
- B01D 35/16Cleaning-out devices501
- B01D 35/18Heating or cooling the filters496
- B01D 35/005Filters specially adapted for use in internal-combustion engine lubrication or fuel systems434
All 15 subgroupsShow fewer
- B01D 35/12Devices for taking out of action one or more units of multi-320
- B01D 35/28Strainers not provided for elsewhere166
- B01D 35/05Floating filters91
- B01D 35/20Vibrating the filters84
- B01D 35/22Directing the mixture to be filtered on to the filters in a62
- B01D 35/10Brush filters61
- B01D 35/24Providing loose granular material to scratch the filters clean1
Recent patents
- Control center box and flexible bathtub6 Oct 2026US 12,751,582 B2Jiaxing Virpol Sanitary Ware co., LTD.
- Shower system with a filter6 Oct 2026US 12,753,092 B2
- System, device, and method for monitoring carbon capture29 Sep 2026US 12,746,489 B2T-Mobile Innovations LLC
- Microfluidic purification device29 Sep 2026US 12,746,548 B2Oriental System Technology Inc.
- Water well submersible pump filter29 Sep 2026US 12,747,741 B2FES Labs, LLC
- Animal watering system8 Oct 2026US 2026/0305570 A1Aborder Products, Inc.
- 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.
Most cited
By later US patents
- Water filter547US 7,143,897 B1H20 International, Inc. · 2006
- Fluid filter system524US 8,272,516 B2Advanced Filtration Systems Inc. · 2012
- 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
- Starter assembly for a gas discharge lamp282US 6,806,649 B2Access Business Group International LLC · 2004