B01D 2321/164
Use of bases
B01D2321/164 (Use of bases) appears on 92 US grants and 127 published applications in this corpus.
Search patents in B01D- Granted patents
- 92
- Published applications
- 127
- Assignees
- 90
- Inventors
- 352
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 4 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 2 | 6 |
| 2006 | 2 | 5 |
| 2007 | 1 | 3 |
| 2008 | 2 | 4 |
| 2009 | 2 | 1 |
| 2010 | 1 | 4 |
| 2011 | 0 | 6 |
| 2012 | 0 | 5 |
| 2013 | 3 | 7 |
| 2014 | 3 | 4 |
| 2015 | 6 | 10 |
| 2016 | 4 | 5 |
| 2017 | 3 | 7 |
| 2018 | 1 | 5 |
| 2019 | 4 | 9 |
| 2020 | 5 | 6 |
| 2021 | 4 | 4 |
| 2022 | 11 | 6 |
| 2023 | 2 | 5 |
| 2024 | 0 | 6 |
| 2025 | 5 | 5 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for protecting drinking water from microorganisms30 Jun 2026US 12,667,810 B2BWT Holding GmbH
- Method of cleaning a fouled reverse osmosis membrane12 May 2026US 12,623,171 B1King Fahd University of Petroleum and Minerals
- Methods for treating porous membranes24 Mar 2026US 12,582,944 B2Apache Corporation
- Installation system comprising a wastewater line9 Dec 2025US 12,491,475 B2BTW Holding GmbH
- Polyamide medium for purifying protein-containing solution and method for producing polyamide medium12 Aug 2025US 12,383,884 B2Asahi Kasei Medical Co., Ltd.
- Modular multi-filter systems and methods of use1 Oct 2026US 2026/0295538 A1Pentair Water Pool and Spa, Inc.
- In line cleaning in place process for alternating tangential flow filter1 Oct 2026US 2026/0295539 A1Enzene Biosciences Limited
- Ultra-low power membrane-assisted lithium extraction system with passive foulant removal24 Sep 2026US 2026/0284598 A1Lyten, Inc.
- Container and water treatment system20 Aug 2026US 2026/0241342 A1Yokogawa Electric Corporation
- Electrochemical metallurgical slag recycling14 May 2026US 2026/0132484 A1Electrasteel, Inc.
Most cited
By later US patents
- Purification of saline water838US 4,036,749 A1977
- Method and apparatus for purifying fluids135US 4,784,771 AEnvironmental Water Technology, Inc. · 1988
- Pyrogens separations by ceramic ultrafiltration122US 5,104,546 AAluminum Company of America · 1992
- Method and apparatus for high efficiency reverse osmosis operation122US 5,925,255 A1999
- Method of back-washing submerged-type ceramic membrane separation apparatus106US 5,647,988 AKubota Corporation · 1997