C02F 2201/4612
Controlling or monitoring
C02F2201/4612 (Controlling or monitoring) appears on 1,219 US grants and 1,546 published applications in this corpus.
Search patents in C02F- Granted patents
- 1,219
- Published applications
- 1,546
- Assignees
- 888
- Inventors
- 3,177
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 11 | 0 |
| 1978 | 18 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 11 | 0 |
| 1992 | 3 | 0 |
| 1993 | 7 | 0 |
| 1994 | 18 | 0 |
| 1995 | 14 | 0 |
| 1996 | 16 | 0 |
| 1997 | 16 | 0 |
| 1998 | 19 | 0 |
| 1999 | 31 | 0 |
| 2000 | 24 | 0 |
| 2001 | 41 | 2 |
| 2002 | 22 | 29 |
| 2003 | 30 | 41 |
| 2004 | 25 | 40 |
| 2005 | 16 | 40 |
| 2006 | 12 | 41 |
| 2007 | 21 | 32 |
| 2008 | 17 | 40 |
| 2009 | 16 | 60 |
| 2010 | 21 | 41 |
| 2011 | 26 | 70 |
| 2012 | 34 | 51 |
| 2013 | 46 | 74 |
| 2014 | 32 | 71 |
| 2015 | 37 | 76 |
| 2016 | 31 | 54 |
| 2017 | 37 | 63 |
| 2018 | 50 | 77 |
| 2019 | 58 | 74 |
| 2020 | 57 | 86 |
| 2021 | 49 | 84 |
| 2022 | 61 | 99 |
| 2023 | 60 | 85 |
| 2024 | 51 | 77 |
| 2025 | 60 | 76 |
| 2026 | 40 | 63 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ion exchange membrane composition and methods for the concentration of perfluoroalkyl substances29 Sep 2026US 12,747,172 B2Evoqua Water Technologies LLC
- Method and kit for remediation of environments contaminated with halogenated organic compounds15 Sep 2026US 12,734,568 B2Photon Remediation Technology N.V.
- Ultrasonic scaler having an ozonated water system8 Sep 2026US 12,729,141 B2DENTSPLY SIRONA Inc.
- Integrated faucet for copper release1 Sep 2026US 12,722,990 B2Kohler India Corporation Private Limited
- Water sanitization device, system and method1 Sep 2026US 12,722,991 B2Waterco Limited
- Electrochemical cell8 Oct 2026US 2026/0308024 A1Imperial College Innovations Limited
- Oxygen or hydrogen functional water production device1 Oct 2026US 2026/0296941 A1Cosan Co., Ltd.
- Appliance with split-electrode water filtration assembly24 Sep 2026US 2026/0285713 A1Haier US Appliance Solutions, Inc.
- System and method for on-site generation of chlorine-based disinfectant24 Sep 2026US 2026/0285714 A1
- Hybrid electrodialysis and electrolysis systems and processes24 Sep 2026US 2026/0285728 A1Pani Clean, Inc.
Most cited
By later US patents
- Electrodeionization apparatus202US 4,632,745 AMillipore Corporation · 1986
- Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes157US 5,425,858 AThe Regents of the University of California · 1995
- Water treatment system for swimming pools and potable water151US 4,752,401 ASafe Water Systems International, Inc. · 1988
- Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes139US 6,309,532 B1The Regents of the University of California · 2001
- Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes117US 5,954,937 AThe Regents of the University of California · 1999