C02F 1/4674
With halogen or compound of halogens
Official title: {with halogen or compound of halogens, e.g. chlorine, bromine}
C02F1/4674 (With halogen or compound of halogens) appears on 826 US grants and 935 published applications in this corpus.
Search patents in C02F- Granted patents
- 826
- Published applications
- 935
- Assignees
- 562
- Inventors
- 1,948
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 13 | 0 |
| 1982 | 9 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 11 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 10 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 11 | 0 |
| 1995 | 14 | 0 |
| 1996 | 8 | 0 |
| 1997 | 13 | 0 |
| 1998 | 20 | 0 |
| 1999 | 26 | 0 |
| 2000 | 19 | 0 |
| 2001 | 28 | 6 |
| 2002 | 13 | 19 |
| 2003 | 20 | 34 |
| 2004 | 16 | 31 |
| 2005 | 12 | 25 |
| 2006 | 10 | 33 |
| 2007 | 18 | 27 |
| 2008 | 9 | 23 |
| 2009 | 11 | 29 |
| 2010 | 18 | 33 |
| 2011 | 12 | 48 |
| 2012 | 23 | 40 |
| 2013 | 25 | 45 |
| 2014 | 20 | 54 |
| 2015 | 32 | 39 |
| 2016 | 27 | 46 |
| 2017 | 20 | 38 |
| 2018 | 34 | 49 |
| 2019 | 33 | 42 |
| 2020 | 28 | 48 |
| 2021 | 36 | 40 |
| 2022 | 28 | 51 |
| 2023 | 30 | 39 |
| 2024 | 29 | 42 |
| 2025 | 28 | 28 |
| 2026 | 17 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flow features for self-cleaning concentric tubular electrochemical cells6 Oct 2026US 12,753,096 B2Evoqua Water Technologies LLC
- Water sanitization device, system and method1 Sep 2026US 12,722,991 B2Waterco Limited
- System for removing a contaminant from wastewater from an industrial plant and the industrial plant including the same25 Aug 2026US 12,715,793 B2Yara International Asa
- Water treatment device18 Aug 2026US 12,709,559 B2LG Electronics Inc.
- Electrochlorination system configurations for the generation of high product strength solutions14 Jul 2026US 12,679,750 B2Evoqua Water Technologies LLC
- Electrochemical cell8 Oct 2026US 2026/0308024 A1Imperial College Innovations Limited
- A method and device for disinfecting water and water supply system comprising said device3 Sep 2026US 2026/0257945 A1Sensiblue IP B.V.
- Pool system with free chlorine electrochemical sensor with ph control20 Aug 2026US 2026/0242245 A1Zodiac Pool Systems LLC
- Electrochemical degradation of fluorinated organic compounds in aqueous solutions30 Jul 2026US 2026/0217575 A1
- Water care system, device, and method23 Jul 2026US 2026/0209088 A1Masterspas, LLC
Most cited
By later US patents
- Chlorination and pH control system112US 4,767,511 A1988
- Method and apparatus for controlling microorganisms112US 5,424,032 ADiversey, Inc. · 1995
- Electrolytic process and apparatus for the controlled oxidation of inorganic and organic species in aqueous solutions111US 5,419,816 AHalox Technologies, Inc. · 1995
- Method and apparatus for cleaning, disinfecting and sterilizing medical instruments106US 4,710,233 ASiemens Aktiengesellschaft · 1987
- Strong acid sterilizing liquid containing hypochlorous acid at a low concentration, method and apparatus for generating same, and apparatus for generating and dispensing same104US 5,858,201 AToto Ltd. · 1999