B01D 37/04
Controlling the filtration
B01D37/04 (Controlling the filtration) appears on 318 US grants and 328 published applications in this corpus.
Search patents in B01D- Granted patents
- 318
- Published applications
- 328
- Assignees
- 287
- Inventors
- 868
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 7 |
| 2003 | 9 | 8 |
| 2004 | 8 | 8 |
| 2005 | 9 | 6 |
| 2006 | 0 | 5 |
| 2007 | 4 | 3 |
| 2008 | 3 | 3 |
| 2009 | 1 | 3 |
| 2010 | 3 | 3 |
| 2011 | 5 | 5 |
| 2012 | 2 | 5 |
| 2013 | 4 | 13 |
| 2014 | 0 | 10 |
| 2015 | 8 | 10 |
| 2016 | 7 | 9 |
| 2017 | 8 | 19 |
| 2018 | 7 | 15 |
| 2019 | 17 | 27 |
| 2020 | 21 | 30 |
| 2021 | 16 | 25 |
| 2022 | 21 | 28 |
| 2023 | 17 | 24 |
| 2024 | 16 | 19 |
| 2025 | 21 | 21 |
| 2026 | 10 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of filtrating liquid, and filtration apparatus for filtrating liquid25 Aug 2026US 12,714,956 B2Renasys AS
- Well plug debris capturing system28 Jul 2026US 12,692,757 B1Bandit Services, LLC
- Water purifier7 Jul 2026US 12,673,281 B2Coway Co., Ltd.
- System and method for separation of organics and liquids from waste material19 May 2026US 12,629,735 B2Komar Industries, Inc.
- System and method for filtration of industrial and mobile fluids21 Apr 2026US 12,605,660 B2FluidLoop Technologies, LLC
- 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
- System and method for separation of organics and liquids from waste material17 Sep 2026US 2026/0273598 A1Komar Industries, Inc.
- Method for evaluating filtration filter30 Jul 2026US 2026/0220759 A1Nsk Ltd.
- Predictive maintenance controls for filters in liquid cooling applications2 Jul 2026US 2026/0183686 A1Vertiv Corporation
Most cited
By later US patents
- Electronic monitoring unit for monitoring number of uses of cartridge155US 5,328,597 AThe Clorox Company · 1994
- Filtration monitoring and control system126US 6,077,435 AUSF Filtration and Separations Group, Inc. · 2000
- Controller and control method for a pool system120US 4,322,297 A1982
- Swimming pool control system having central processing unit and remote communication110US 5,616,239 A1997
- Method and apparatus for detecting a fouled fluid filter96US 5,477,731 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1995