B01D 29/705
By compression of compressible filter medium
Official title: {by compression of compressible filter medium, e.g. foam}
B01D29/705 (By compression of compressible filter medium) appears on 18 US grants and 16 published applications in this corpus.
Search patents in B01D- Granted patents
- 18
- Published applications
- 16
- Assignees
- 15
- Inventors
- 32
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 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 | 2 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Backwash shoe method and apparatus that increases effective surface area of cloth filter media5 Feb 2019US 10,195,549 B1Aqua-Aerobic Systems, Inc.
- Method for filtering9 Feb 2016US 9,254,455 B2Industrial Technology Research Institute
- Filtration dehydration apparatus26 Jan 2016US 9,242,191 B2Industrial Technology Research Institute
- Method and device for filter residue treatment20 Mar 2025US 2025/0090982 A1
- Filtration device28 Dec 2023US 2023/0415075 A1SSENG Co., Ltd.
- Filter module, filter module system, and method for binding particles of a material mixture2 Jul 2020US 2020/0206659 A1Fachhochschule Kiel
- Method for filtering27 Nov 2014US 2014/0346127 A1Industrial Technology Research Institute
- Filtration dehydration apparatus13 Jun 2013US 2013/0146520 A1Industrial Technology Research Institute
Most cited
By later US patents
- High speed upward flow filtration apparatus36US 5,248,415 AMitsuimiikekakouki Kabushiki Kaisha · 1993
- Self-cleaning filter33US 4,039,452 A1977
- Filtration system29US 4,350,590 A1982
- Oil-water separation apparatus24US 4,022,694 AHydronautics, Incorporated · 1977
- Filtering apparatus and method24US 4,776,962 AJames Howden & Company Limited, a British Company · 1988