B01D 61/12
Controlling or regulating
B01D61/12 (Controlling or regulating) appears on 658 US grants and 810 published applications in this corpus.
Search patents in B01D- Granted patents
- 658
- Published applications
- 810
- Assignees
- 413
- Inventors
- 1,541
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 1 | 0 |
| 1988 | 10 | 0 |
| 1989 | 9 | 0 |
| 1990 | 5 | 0 |
| 1991 | 5 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 10 | 0 |
| 1997 | 17 | 0 |
| 1998 | 19 | 0 |
| 1999 | 19 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 1 |
| 2002 | 8 | 10 |
| 2003 | 10 | 12 |
| 2004 | 8 | 33 |
| 2005 | 13 | 16 |
| 2006 | 5 | 11 |
| 2007 | 9 | 14 |
| 2008 | 12 | 27 |
| 2009 | 10 | 23 |
| 2010 | 12 | 25 |
| 2011 | 13 | 30 |
| 2012 | 16 | 21 |
| 2013 | 18 | 33 |
| 2014 | 12 | 32 |
| 2015 | 13 | 32 |
| 2016 | 20 | 37 |
| 2017 | 23 | 50 |
| 2018 | 28 | 49 |
| 2019 | 45 | 41 |
| 2020 | 36 | 50 |
| 2021 | 43 | 44 |
| 2022 | 34 | 54 |
| 2023 | 26 | 37 |
| 2024 | 29 | 52 |
| 2025 | 36 | 44 |
| 2026 | 18 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Intelligent reverse osmosis control22 Sep 2026US 12,741,887 B2Ozono Polaris, S.A. de C.V.
- Water treatment method and water treatment agent composition8 Sep 2026US 12,728,390 B2Organo Corporation
- Water purifier7 Jul 2026US 12,673,281 B2Coway Co., Ltd.
- Hybrid energy recovery system23 Jun 2026US 12,661,617 B2Fluid Equipment Development Company, LLC
- Systems and methods for compact, decentralized desalination of feedwater for point-of-use applications16 Jun 2026US 12,654,134 B2Massachusetts Institute of Technology
- Utilization of an ultra-high pressure reverse osmosis membrane system to treat industrial wastewater or a reverse osmosis reject waste stream8 Oct 2026US 2026/0308017 A1Renovo Resources LLC
- Apparatus and method for waste-water reduction in laboratory water purification system8 Oct 2026US 2026/0308022 A1Thermo Orion Inc.
- Dynamic control of lithium production facility using model predictive controller1 Oct 2026US 2026/0297703 A1ExxonMobil Technology and Engineering Company
- System and method for improved flow distribution in a hyperfiltration array24 Sep 2026US 2026/0284596 A1
- Hybrid Energy Recovery System24 Sep 2026US 2026/0284597 A1Fluid Equipment Development Company, LLC
Most cited
By later US patents
- Hot water disinfection of dialysis machines, including the extracorporeal circuit thereof490US 5,591,344 AAksys, Ltd. · 1997
- Fluid separation and delivery apparatus and method279US 6,852,219 B22005
- Hemodialysis machine with automatic priming by induced pressure pulses251US 5,863,421 AAksys, Ltd. · 1999
- Method of rinsing back blood to hemodialysis patient243US 5,690,831 AAksys, Ltd. · 1997
- Methods for ultrafiltration control in hemodialysis212US 5,725,776 AAksys, Ltd. · 1998