B01D 2321/40
Automatic control of cleaning processes
B01D2321/40 (Automatic control of cleaning processes) appears on 127 US grants and 217 published applications in this corpus.
Search patents in B01D- Granted patents
- 127
- Published applications
- 217
- Assignees
- 129
- Inventors
- 500
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 10 |
| 2013 | 0 | 8 |
| 2014 | 2 | 9 |
| 2015 | 6 | 17 |
| 2016 | 8 | 8 |
| 2017 | 8 | 19 |
| 2018 | 12 | 15 |
| 2019 | 20 | 11 |
| 2020 | 5 | 15 |
| 2021 | 11 | 16 |
| 2022 | 11 | 14 |
| 2023 | 13 | 17 |
| 2024 | 9 | 18 |
| 2025 | 10 | 15 |
| 2026 | 3 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Techniques for managing scale formation in reverse osmosis (RO) and nanofiltration (NF) systems and a hybrid filtration architecture implementing the same12 May 2026US 12,623,921 B2Clean H2O Technologies, LLC
- Method and program for determining cleaning trouble in fresh water generator10 Mar 2026US 12,569,813 B2Toray Industries, Inc.
- Method of operation of a perfusion system3 Mar 2026US 12,565,635 B2Cytiva Sweden AB
- System for filter analysis and regeneration30 Dec 2025US 12,510,454 B2Taiwan Semiconductor Manufacturing Company.Ltd
- Control method for delaying nanofiltration membrane aluminum fouling of water treatment system2 Dec 2025US 12,486,179 B2Greentech Environment Co., Ltd.
- Cleaning method of membrane housing, membrane housing cleaned by the cleaning method, and ultrapure water manufacturing apparatus including the membrane housing17 Sep 2026US 2026/0273471 A1Organo Corporation
- Control device, control method, and control program20 Aug 2026US 2026/0242254 A1Yokogawa Electric Corporation
- Method for evaluating oxidation risk of separation membrane, program for evaluating oxidation risk, recording medium, and evaluation device9 Jul 2026US 2026/0192257 A1Toray Industries, Inc.
- System and method for improved micro and ultra crossflow membrane filtration2 Jul 2026US 2026/0183718 A1PurposeEnergy, Inc.
- A method for reducing accumulation of foulants on reverse osmosis membranes and a groundwater desalination system18 Jun 2026US 2026/0166487 A1C2 Water (Spv) Pty Ltd
Most cited
By later US patents
- Electrolyte and pH monitoring for fluid removal processes251US 9,192,707 B2Medtronic, Inc. · 2015
- Membrane bioreactor, process and aerator74US 6,863,817 B2Zenon Environmental Inc. · 2005
- Apparatus and method for producing purified water having microbiological purity67US 6,908,546 B2Bionomics Limited · 2005
- Automated cleaning method for dialyzers63US 4,444,597 A1984
- Automated cleaning system for dialyzers60US 4,332,264 AUnited Healthcare Association · 1982