B01D 25/284
By gases or by heating
Official title: {by gases or by heating}
B01D25/284 (By gases or by heating) appears on 40 US grants and 40 published applications in this corpus.
Search patents in B01D- Granted patents
- 40
- Published applications
- 40
- Assignees
- 20
- Inventors
- 69
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 3 |
| 2011 | 2 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 3 |
| 2014 | 0 | 1 |
| 2015 | 3 | 3 |
| 2016 | 2 | 2 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 2 | 2 |
| 2020 | 2 | 4 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mechanical demoisturizing of partially-decomposed organic material13 Jan 2026US 12,521,651 B2American Peat Technology, LLC
- High-efficiency filter press31 May 2022US 11,344,825 B2Jingjin Equipment Inc.
- Electromagnetic-force-based dewatering for sewage sludge reduction23 Feb 2021US 10,927,027 B2China Jiliang University
- Filter plate assembly for filter2 Feb 2021US 10,905,977 B2
- Method for operating a filter press and a filter press11 Aug 2020US 10,737,200 B2Outotec (Finland) Oy
- Filter apparatus and filtering method15 May 2025US 2025/0153076 A1
- Mechanical demoisturizing of partially-decomposed organic material21 Mar 2024US 2024/0091678 A1American Peat Technology, LLC
- Mechanical demoisturizing of partially-decomposed organic material21 Mar 2024US 2024/0091679 A1American Peat Technology, LLC
- Arrangement and method for controlling pressure filter14 Dec 2023US 2023/0398472 A1Metso Outotec Finland Oy
- Pressure filter dewatering system and dewatering method16 Jun 2022US 2022/0184534 A1
Most cited
By later US patents
- Method for isolation of nanomaterials40US 9,446,397 B2Siluria Technologies, Inc. · 2016
- Filter press with alternating diaphragm squeeze chamber plates and filtration chamber plates35US 6,180,002 B2United States Filter Corporation · 2001
- Filter apparatus belt filter medium control and treatment22US 5,462,677 A1995
- Method for producing and drying a filter cake, while avoiding entering of the filter cake into a thermoplastic phase18US 5,558,773 ABertrams Dehydrat AG · 1996
- Method of drying a filter cake and a press for carrying out the method18US 6,387,282 B1Lenser Filtration GmbH + Co. · 2002