B01D 29/78
For washing
Official title: for washing
B01D29/78 (For washing) appears on 99 US grants and 25 published applications in this corpus.
Search patents in B01D- Granted patents
- 99
- Published applications
- 25
- Assignees
- 67
- Inventors
- 165
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 3 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 3 |
| 2014 | 1 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 3 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rotary filter and associated filtering method31 Mar 2026US 12,589,340 B2Gaudfrin
- Filtration recovery device and filtration recovery method20 Jan 2026US 12,528,033 B2Murata Manufacturing Co., Ltd.
- Filtration recovery device and filtration recovery method9 Jul 2024US 12,030,002 B2Murata Manufacturing Co., Ltd.
- Mechanical separation devices30 Apr 2024US 11,969,673 B2ICM, Inc.
- Mechanical separation devices31 Aug 2021US 11,103,811 B2ICM, Inc.
- Process and circuit for producing enhanced manganese-zinc filter cake compositions with reduced chloride concentrations5 Feb 2026US 2026/0035310 A1Energysource Minerals LLC
- Filter cake sonication3 Jul 2025US 2025/0214006 A1BASF SE
- Filtration recovery device and filtration recovery method26 Sep 2024US 2024/0316480 A1Murata Manufacturing Co., Ltd.
- Combination crystallizer, filter, washer, dryer device7 Mar 2024US 2024/0075440 A1Odh IP Corp.
- Rotary filter and associated filtering method29 Jun 2023US 2023/0201747 A1Gaudfrin
Most cited
By later US patents
- Pressure filter with vibratory impactor125US 4,526,688 AIndustrial Filter & Pump Mfg. Co. · 1985
- Multifunctional filtration apparatus53US 5,380,437 ABiomedical Research and Development Laboratories, Inc. · 1995
- Filter cake removal method and apparatus52US 4,289,630 AIndustrial Filter & Pump Mfg. Co. · 1981
- Cell harvester50US 4,787,988 ABiomedical Research and Development Laboratories, Inc. · 1988
- Filtration method and apparatus39US 4,167,875 A1979