B01D 36/00
Filter circuits or combinations of filters with other separating devices
B01D36/00 (Filter circuits or combinations of filters with other separating devices) appears on 1,712 US grants and 1,384 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,712
- Published applications
- 1,384
- Assignees
- 851
- Inventors
- 3,148
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 14 | 0 |
| 1978 | 11 | 0 |
| 1979 | 8 | 0 |
| 1980 | 6 | 0 |
| 1981 | 19 | 0 |
| 1982 | 13 | 0 |
| 1983 | 16 | 0 |
| 1984 | 22 | 0 |
| 1985 | 38 | 0 |
| 1986 | 28 | 0 |
| 1987 | 37 | 0 |
| 1988 | 33 | 0 |
| 1989 | 41 | 0 |
| 1990 | 34 | 0 |
| 1991 | 34 | 0 |
| 1992 | 45 | 0 |
| 1993 | 40 | 0 |
| 1994 | 25 | 0 |
| 1995 | 29 | 0 |
| 1996 | 25 | 0 |
| 1997 | 34 | 0 |
| 1998 | 36 | 0 |
| 1999 | 33 | 0 |
| 2000 | 29 | 0 |
| 2001 | 36 | 8 |
| 2002 | 26 | 32 |
| 2003 | 34 | 35 |
| 2004 | 21 | 35 |
| 2005 | 28 | 36 |
| 2006 | 24 | 41 |
| 2007 | 18 | 38 |
| 2008 | 18 | 28 |
| 2009 | 16 | 30 |
| 2010 | 19 | 32 |
| 2011 | 26 | 43 |
| 2012 | 25 | 42 |
| 2013 | 32 | 52 |
| 2014 | 29 | 45 |
| 2015 | 42 | 65 |
| 2016 | 41 | 67 |
| 2017 | 44 | 86 |
| 2018 | 53 | 70 |
| 2019 | 73 | 91 |
| 2020 | 93 | 98 |
| 2021 | 65 | 86 |
| 2022 | 86 | 83 |
| 2023 | 54 | 63 |
| 2024 | 58 | 69 |
| 2025 | 58 | 64 |
| 2026 | 36 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
- Filter apparatus with vented core, electrostatic discharge mitigation, or both18 Aug 2026US 12,708,867 B2Entegris, Inc.
- Water treatment system and method4 Aug 2026US 12,697,567 B2Drops Tech 2015 Ltd
- Cyclone separator and dishwasher4 Aug 2026US 12,697,628 B2Guangdong Midea White Home Appliance Technology Innovation Center Co., Ltd.
- Filter device23 Jun 2026US 12,661,607 B2Hydac Filtertechnik GmbH
- Process for cleaning or removing solids from tanks8 Oct 2026US 2026/0307117 A1Wacker Chemie AG
- Filtration apparatus and method of controlling filtration apparatus1 Oct 2026US 2026/0295479 A1Renasys AS
- Devices, systems, and methods, for integrating of a fluid service assembly into a machine1 Oct 2026US 2026/0295482 A1Rpm Industries, LLC
- Surface cleaning apparatus24 Sep 2026US 2026/0283435 A1Omachron Intellectual Property Inc.
- Storage device and coolant system24 Sep 2026US 2026/0284815 A1Fanuc Corporation
Most cited
By later US patents
- Filter module with degassing feature227US 5,468,388 ASartorius AG · 1995
- Process for making hermetically sealed filter units and filters made thereby163US 4,113,627 AFiltertek Inc. · 1978
- Continuous process for the reclamation of waste drilling fluids141US 4,482,459 ANewpark Waste Treatment Systems Inc. · 1984
- Arterial blood filter with improved gas venting135US 4,411,783 AShiley Incorporated · 1983
- Water purification device with an intake funnel133US 4,969,996 ABrita Wasser-Filter-Systeme GmbH · 1990