B01D 25/322
Specially for chamber filter presses
Official title: {specially for chamber filter presses}
B01D25/322 (Specially for chamber filter presses) appears on 31 US grants and 12 published applications in this corpus.
Search patents in B01D- Granted patents
- 31
- Published applications
- 12
- Assignees
- 19
- Inventors
- 40
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 2 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter press and a filter plate compression and transport retrofitting kit for a filter press20 May 2025US 12,303,808 B2Metso Outotec Finland Oy
- Filter press and washer for filter plate apparatus29 Apr 2025US 12,285,706 B2FLSmidth A/S
- Liquid filtration apparatus22 Sep 2020US 10,780,375 B2Outotec (Finland) Oy
- Self-cleaning system for filter press5 Dec 2017US 9,833,730 B2Les éQuipements D'éRablièRe Cdl Inc.
- Filter press with side feed ports17 Nov 2015US 9,186,605 B2
- Loss-free process for producing cathode active material without generating waste and wastewater24 Sep 2026US 2026/0285703 A1
- A filter press and a filter plate compression and transport retrofitting kit for a filter press2 Feb 2023US 2023/0032206 A1Metso Outotec Finland Oy
- Filter press and washer for filter plate apparatus1 Dec 2022US 2022/0379243 A1FLSmidth A/S
- Liquid filtration apparatus11 Jun 2020US 2020/0179831 A1Outotec (Finland) Oy
- Horizontal pressure filter collector element, horizontal pressure filter plate element, horizontal pressure filter, and methods related thereto17 Jan 2019US 2019/0015764 A1Outotec (Finland) Oy
Most cited
By later US patents
- Filter press20US 4,108,777 AKurita Machinery Manufacturing Company Limited · 1978
- Filter press14US 4,032,450 AIshigaki Kiko Co., Ltd. · 1977
- Filter cloth arrangement for use in fixed filter cloth type filter press13US 4,491,519 AKurita Machinery Manufacturing Company Limited · 1985
- Method for dewatering and drying a liquid/solid slurry and an apparatus for using the method13US 4,999,118 ABulgarska Industrialna Stopanska Associatia · 1991
- Apparatus for cleaning a filter press12US 4,325,396 AVon Roll AG · 1982