B01D 35/18
Heating or cooling the filters
B01D35/18 (Heating or cooling the filters) appears on 496 US grants and 284 published applications in this corpus.
Search patents in B01D- Granted patents
- 496
- Published applications
- 284
- Assignees
- 266
- Inventors
- 879
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 13 | 0 |
| 1984 | 13 | 0 |
| 1985 | 12 | 0 |
| 1986 | 19 | 0 |
| 1987 | 14 | 0 |
| 1988 | 17 | 0 |
| 1989 | 24 | 0 |
| 1990 | 16 | 0 |
| 1991 | 8 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 9 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 11 | 3 |
| 2002 | 7 | 6 |
| 2003 | 7 | 8 |
| 2004 | 8 | 8 |
| 2005 | 2 | 9 |
| 2006 | 4 | 9 |
| 2007 | 7 | 9 |
| 2008 | 7 | 11 |
| 2009 | 2 | 7 |
| 2010 | 3 | 9 |
| 2011 | 7 | 13 |
| 2012 | 8 | 11 |
| 2013 | 7 | 14 |
| 2014 | 10 | 8 |
| 2015 | 7 | 19 |
| 2016 | 7 | 22 |
| 2017 | 16 | 15 |
| 2018 | 12 | 10 |
| 2019 | 18 | 21 |
| 2020 | 14 | 12 |
| 2021 | 18 | 20 |
| 2022 | 18 | 9 |
| 2023 | 8 | 10 |
| 2024 | 8 | 11 |
| 2025 | 11 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid supply device for a motor vehicle5 May 2026US 12,618,349 B2Plastic Omnium Advanced Innovation and Research
- Transmission oil filter module6 Jan 2026US 12,516,723 B2Mahle International GmbH
- Apparatus and method for infusing and dispensing oils, and drying and heating infusing materials25 Nov 2025US 12,478,074 B2Levo Oil Infusion, Inc.
- Process for separating a fermented malt beverage2 Sep 2025US 12,404,482 B2ABV Technology, Inc.
- Insulating jacket for a filter12 Aug 2025US 12,385,592 B2Adey Holdings (2008) Limited
- Under-sink water purifier30 Jul 2026US 2026/0217566 A1Coway Co., Ltd.
- A multi-process filtering and drying apparatus18 Jun 2026US 2026/0166453 A1Gmm Pfaudler Limited
- Tankless water heater inlet filter11 Jun 2026US 2026/0160446 A1
- Filtration Unit For Processing a Liquid5 Mar 2026US 2026/0061347 A1
- Liquid supply device for a motor vehicle20 Nov 2025US 2025/0354509 A1Plastic Omnium Advanced Innovation and Research
Most cited
By later US patents
- Self-regulating porous heater device180US 4,794,226 AMetcal, Inc. · 1988
- Self-regulating porous heating device179US 5,073,625 AMetcal, Inc. · 1991
- Fuel filter assembly with replacement element105US 5,770,065 AParker-Hannifin Corporation · 1998
- Reversible filter element87US 5,645,718 AParker-Hannifin Corporation · 1997
- Simplified method and apparatus for purification82US 4,948,499 APurewater Science International, Inc. · 1990