B01D 2311/243
Electrical conductivity control
B01D2311/243 (Electrical conductivity control) appears on 53 US grants and 91 published applications in this corpus.
Search patents in B01D- Granted patents
- 53
- Published applications
- 91
- Assignees
- 63
- Inventors
- 214
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 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 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 0 | 5 |
| 2009 | 0 | 1 |
| 2010 | 3 | 3 |
| 2011 | 4 | 5 |
| 2012 | 3 | 2 |
| 2013 | 3 | 5 |
| 2014 | 1 | 4 |
| 2015 | 1 | 2 |
| 2016 | 5 | 4 |
| 2017 | 1 | 3 |
| 2018 | 2 | 10 |
| 2019 | 2 | 6 |
| 2020 | 8 | 5 |
| 2021 | 4 | 7 |
| 2022 | 5 | 4 |
| 2023 | 1 | 6 |
| 2024 | 3 | 4 |
| 2025 | 2 | 6 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water softener system and method of operating the same6 Jan 2026US 12,515,214 B2A. O. Smith Corporation
- Flow control for reverse osmosis filter14 Oct 2025US 12,441,629 B2Bellco SRL
- Computerized control system for a desalination plant15 Jul 2025US 12,358,812 B2BP Exploration Operating Company Limited
- Water purification apparatus, and a method for controlling a water purification apparatus31 Dec 2024US 12,179,151 B2Baxter Healthcare S. A.
- Optimizing efficiency of a water purification apparatus26 Mar 2024US 11,939,234 B2Baxter Healthcare S. A.
- Method for Increasing Reverse Osmosis Recovery for High Silica Waters27 Aug 2026US 2026/0250161 A1Veolia Water Solutions & Technologies Support
- Control device, control method, and control program6 Aug 2026US 2026/0225933 A1Yokogawa Electric Corporation
- Water softener system and method of operating the same18 Jun 2026US 2026/0166540 A1A. O. Smith Corporation
- Ultrafiltration methods30 Apr 2026US 2026/0115665 A1BioSpring Gesellschaft für Biotechnologie mbH
- Reverse osmosis facility4 Sep 2025US 2025/0276915 A1
Most cited
By later US patents
- System and method for delivery of regional citrate anticoagulation to extracorporeal blood circuits58US 8,211,048 B2Henry Ford Health System · 2012
- Encapsulated water treatment system41US 7,736,503 B2Eco Water Systems, LLC · 2010
- Electrodialysis system and process25US 8,142,633 B2GE Ionics, Inc. · 2012
- Combination of a single-station reverse osmosis device with a hemodialysis device20US 9,474,841 B22016
- Encapsulated water treatment system18US 7,909,998 B2Ecowater Systems, Inc. · 2011