B01D 24/402
Containing fixed liquid displacement elements or cores
Official title: {containing fixed liquid displacement elements or cores}
B01D24/402 (Containing fixed liquid displacement elements or cores) appears on 22 US grants and 21 published applications in this corpus.
Search patents in B01D- Granted patents
- 22
- Published applications
- 21
- Assignees
- 26
- Inventors
- 57
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 3 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 3 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Solid-liquid filtration assembly and method of use25 Nov 2025US 12,478,900 B2
- Underdrain filtered water collection systems with winged screen diffusers26 Aug 2025US 12,397,247 B2De Nora Water Technologies, LLC
- Water filter medium container22 Apr 2025US 12,281,028 B2Green Things, LLC
- Automatic sand filter system controller6 Aug 2024US 12,053,723 B2Saudi Arabian Oil Company
- Liquid treatment device5 Dec 2023US 11,833,452 B2Canpro Water Treatment Inc.
- In-Pipe Stormwater Treatment Unit Best Management Practice (I-STUB)21 May 2026US 2026/0138056 A1The United States of America as represented by the Secretary of the Navy
- Filtration system14 May 2026US 2026/0131263 A2The Pennington School
- Filtration system11 Dec 2025US 2025/0375720 A1The Pennington School, Women in STEM Solving Problems ("WISSP")
- Filtration System16 Oct 2025US 2025/0319426 A1
- Underdrain Filtered Water Collection Systems with Winged Screen Diffusers29 May 2025US 2025/0170499 A1De Nora Water Technologies, LLC
Most cited
By later US patents
- Wastewater management system26US 5,843,308 ADSS Environmental, Inc. · 1998
- Fish tank filter20US 4,220,530 A1980
- Pulsing portions of a filter cell to extend a filter run18US 4,976,873 AZimpro/Passavant Inc. · 1990
- Swimming pool filter16US 7,081,200 B2Sacopa, S.A.U. · 2006
- Gas entrainment flotation reactor with arrangements for separating solids from liquids12US 5,776,335 AForschungszentrum Julich GmbH · 1998