B01D 2321/28
Details relating to membrane cleaning, regeneration, sterilization or to the prevention of
Official title: by soaking or impregnating
B01D2321/28 (Details relating to membrane cleaning, regeneration, sterilization or to the prevention of) appears on 37 US grants and 51 published applications in this corpus.
Search patents in B01D- Granted patents
- 37
- Published applications
- 51
- Assignees
- 50
- Inventors
- 174
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 4 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 0 | 2 |
| 2017 | 3 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 5 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods for treating porous membranes24 Mar 2026US 12,582,944 B2Apache Corporation
- Replenishing liquid material to a membrane within a multi-module system28 Jan 2025US 12,208,358 B2Imtex Membranes Corp.
- Method for unblocking pores in a selective catalytic reduction catalyst20 Aug 2024US 12,064,756 B2Volvo Truck Corporation
- Method for cleaning membrane29 Aug 2023US 11,738,310 B2Industrial Technology Research Institute
- Polyamide (PA) nanofiltration (NF) membrane, and preparation method thereof by regeneration from scrapped microfiltration (MF) membrane18 Apr 2023US 11,628,405 B2Tongji University
- Systems and methods for extending water filtration membrane lifetime in self-mediated saltless whole home water treatment systems2 Apr 2026US 2026/0091356 A1Pentair Residential Filtration, LLC
- Treatment method and treatment apparatus for waste aqueous development liquid, and developing system15 Jan 2026US 2026/0014522 A1Asahi Kasei Kabushiki Kaisha
- Control method for ro system, and non-transitory computer-readable storage medium25 Dec 2025US 2025/0387756 A1Fracta Leap K.K.
- In-situ repair method for the surface of pa membrane after the destruction of oxidizing substances5 Jun 2025US 2025/0177924 A1Northwestern Polytechnical University
- Hybrid filter and chemical cleaning assembly and method8 May 2025US 2025/0145495 A1
Most cited
By later US patents
- Shipboard wastewater treatment system104US 6,361,695 B1Zenon Environmental Inc. · 2002
- Methods for improving filtration performance of hollow fiber membranes53US 7,378,024 B2Hydranautics · 2008
- Artificial kidney cleaning apparatus and process48US 4,166,031 A1979
- Reverse osmosis membrane and process28US 7,490,725 B2Membrane Technology and Research, Inc. · 2009
- Wastewater treatment process and apparatus for high flow impurity removal27US 5,871,648 AEnvironmental Chemistries, Inc. · 1999