B01D 29/86
Retarding cake deposition on the filter during the filtration period
Official title: Retarding cake deposition on the filter during the filtration period, e.g. using stirrers {(B01D29/908 takes precedence)}
B01D29/86 (Retarding cake deposition on the filter during the filtration period) appears on 211 US grants and 63 published applications in this corpus.
Search patents in B01D- Granted patents
- 211
- Published applications
- 63
- Assignees
- 145
- Inventors
- 348
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 10 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 11 | 0 |
| 2001 | 8 | 3 |
| 2002 | 6 | 4 |
| 2003 | 7 | 3 |
| 2004 | 2 | 4 |
| 2005 | 3 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 2 |
| 2011 | 2 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 5 |
| 2019 | 1 | 2 |
| 2020 | 1 | 2 |
| 2021 | 5 | 10 |
| 2022 | 1 | 1 |
| 2023 | 3 | 4 |
| 2024 | 4 | 2 |
| 2025 | 5 | 3 |
| 2026 | 1 | 2 |
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
- Paper pulp pressure screen16 Dec 2025US 12,497,735 B1
- Tableware washing apparatus and filtering device thereof26 Aug 2025US 12,396,614 B2Foshan Shunde Midea Washing Appliances Mfg. Co., Ltd.
- Filtering and concentrating apparatus having stirring function20 May 2025US 12,303,843 B2Zhejiang Dong'ou Filtering Machinery Manufacturing Co., Ltd.
- Devices and methods for the integrated filtration, drying, and mechanical processing of active pharmaceutical ingredients18 Mar 2025US 12,251,651 B2Massachusetts Institute of Technology
- 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.
- A multi-process filtering and drying apparatus18 Jun 2026US 2026/0166453 A1Gmm Pfaudler Limited
- Filter System12 Jun 2025US 2025/0187945 A1IP 33 Ltd
- Filtration device13 Mar 2025US 2025/0083075 A1Ineos Europe AG
- Tank for filtering and collecting debris13 Feb 2025US 2025/0050244 A1Joint-Stock Company “Atomenergoproekt”
Most cited
By later US patents
- 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
- Filtration method and apparatus86US 4,790,942 AMembrex, Inc. · 1988
- Small volume rotary filter86US 4,876,013 AMembrex, Inc. · 1989
- Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof85US 6,617,720 B1Kadant Black Clawson LLC · 2003