B01D 29/76
Handling the filter cake in the filter for purposes other than for
Official title: Handling the filter cake in the filter for purposes other than for regenerating (B01D29/94 takes precedence)
B01D29/76 (Handling the filter cake in the filter for purposes other than for) appears on 566 US grants and 192 published applications in this corpus.
Search patents in B01D- Granted patents
- 566
- Published applications
- 192
- Assignees
- 344
- Inventors
- 913
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 15 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 10 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 12 | 0 |
| 1987 | 16 | 0 |
| 1988 | 20 | 0 |
| 1989 | 23 | 0 |
| 1990 | 21 | 0 |
| 1991 | 20 | 0 |
| 1992 | 29 | 0 |
| 1993 | 26 | 0 |
| 1994 | 14 | 0 |
| 1995 | 20 | 0 |
| 1996 | 23 | 0 |
| 1997 | 20 | 0 |
| 1998 | 17 | 0 |
| 1999 | 18 | 0 |
| 2000 | 20 | 0 |
| 2001 | 21 | 3 |
| 2002 | 13 | 7 |
| 2003 | 13 | 7 |
| 2004 | 4 | 11 |
| 2005 | 6 | 8 |
| 2006 | 5 | 6 |
| 2007 | 0 | 7 |
| 2008 | 4 | 2 |
| 2009 | 1 | 6 |
| 2010 | 6 | 7 |
| 2011 | 6 | 6 |
| 2012 | 4 | 6 |
| 2013 | 3 | 9 |
| 2014 | 3 | 7 |
| 2015 | 5 | 3 |
| 2016 | 7 | 5 |
| 2017 | 3 | 7 |
| 2018 | 8 | 12 |
| 2019 | 4 | 13 |
| 2020 | 9 | 10 |
| 2021 | 11 | 17 |
| 2022 | 6 | 4 |
| 2023 | 6 | 11 |
| 2024 | 9 | 6 |
| 2025 | 7 | 7 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Machine for processing liquid or semi-liquid food products11 Aug 2026US 12,702,144 B2Ali Group S.R.L.—Carpigiani
- Filtration device14 Apr 2026US 12,599,852 B2SSENG Co., Ltd.
- 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.
- Paper pulp pressure screen16 Dec 2025US 12,497,735 B1
- Washing machine effluent filtration with an agitator rotating around a filter element3 Sep 2026US 2026/0257157 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Potato protein extraction apparatus and method27 Aug 2026US 2026/0250314 A1Root Extracts Limited
- A multi-process filtering and drying apparatus18 Jun 2026US 2026/0166453 A1Gmm Pfaudler Limited
- Separator device for dewatering wet matter4 Jun 2026US 2026/0151977 A1Vogelsang GmbH & Co. KG
- Process and circuit for producing enhanced manganese-zinc filter cake compositions with reduced chloride concentrations5 Feb 2026US 2026/0035310 A1Energysource Minerals LLC
Most cited
By later US patents
- Pressure filter with vibratory impactor125US 4,526,688 AIndustrial Filter & Pump Mfg. Co. · 1985
- Method of back-washing submerged-type ceramic membrane separation apparatus106US 5,647,988 AKubota Corporation · 1997
- Filtration system and mount for beverage dispensers and automatic beverage brewing machines88US 5,342,518 AIraco Filtration Systems, Inc. · 1994
- Reversible filter element87US 5,645,718 AParker-Hannifin Corporation · 1997
- Filtration method and apparatus86US 4,790,942 AMembrex, Inc. · 1988