C02F 2201/003
Coaxial constructions
Official title: Coaxial constructions, e.g. a cartridge located coaxially within another
C02F2201/003 (Coaxial constructions) appears on 353 US grants and 455 published applications in this corpus.
Search patents in C02F- Granted patents
- 353
- Published applications
- 455
- Assignees
- 341
- Inventors
- 1,015
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 6 |
| 2004 | 3 | 5 |
| 2005 | 3 | 3 |
| 2006 | 4 | 9 |
| 2007 | 1 | 16 |
| 2008 | 3 | 14 |
| 2009 | 6 | 19 |
| 2010 | 4 | 23 |
| 2011 | 7 | 31 |
| 2012 | 19 | 24 |
| 2013 | 13 | 23 |
| 2014 | 14 | 21 |
| 2015 | 20 | 22 |
| 2016 | 16 | 18 |
| 2017 | 10 | 12 |
| 2018 | 15 | 16 |
| 2019 | 14 | 20 |
| 2020 | 20 | 30 |
| 2021 | 19 | 32 |
| 2022 | 19 | 22 |
| 2023 | 19 | 23 |
| 2024 | 13 | 29 |
| 2025 | 19 | 26 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Electrochlorination system configurations for the generation of high product strength solutions14 Jul 2026US 12,679,750 B2Evoqua Water Technologies LLC
- Water purifier having composite filter26 May 2026US 12,637,377 B2Coway Co., Ltd.
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- Split resin bed, low pressure drop, and replaceable cartridge deionization filter20 Aug 2026US 2026/0241312 A1Atmus Filtration Inc.
- Magnetic molecular resonator for water and other fluids20 Aug 2026US 2026/0242259 A1
- Dispensing device for purified water6 Aug 2026US 2026/0225918 A1Merck Patent GmbH
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- System for dewatering and hygienization of wet waste streams23 Jul 2026US 2026/0209098 A1Carbon Twelve AS
Most cited
By later US patents
- High pressure electrolyzer module197US 6,554,978 B1Vandenborre Technologies NV · 2003
- Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes157US 5,425,858 AThe Regents of the University of California · 1995
- Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes117US 5,954,937 AThe Regents of the University of California · 1999
- Apparatus for electrochemical treatment of water84US 5,427,667 A1995
- Enhanced in-bottle filtration mechanism and techniques84US 6,136,189 AInnova Pure Water Inc. · 2000