C02F 2301/028
Tortuous
C02F2301/028 (Tortuous) appears on 93 US grants and 148 published applications in this corpus.
Search patents in C02F- Granted patents
- 93
- Published applications
- 148
- Assignees
- 109
- Inventors
- 328
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 10 |
| 2014 | 6 | 7 |
| 2015 | 3 | 7 |
| 2016 | 6 | 5 |
| 2017 | 2 | 8 |
| 2018 | 4 | 6 |
| 2019 | 8 | 14 |
| 2020 | 13 | 12 |
| 2021 | 4 | 12 |
| 2022 | 8 | 10 |
| 2023 | 10 | 14 |
| 2024 | 9 | 18 |
| 2025 | 9 | 8 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Magnetic treatment of fluids to be used in the production of alcoholic beverages with hydromagnetic resonators2 Jun 2026US 12,644,081 B1NEAU Brands, Inc.
- Biofilter block and use thereof for wastewater treatment10 Mar 2026US 12,570,558 B2Premier Tech Eau Et Environnement LtéE
- Method and apparatus for producing hydroxyl radicals24 Feb 2026US 12,559,391 B2The University of British Columbia
- Magnetic treatment of drinking water by hydromagnetic resonators with permanent magnets contained therein24 Feb 2026US 12,559,394 B2NEAU Brands, Inc.
- Device and method for containing, covering, and treating produced water in a container13 Jan 2026US 12,522,517 B2Exterran Water Solutions ULC
- Method and apparatus for electrochemical ion exchange13 Aug 2026US 2026/0234032 A1Lithios Inc.
- Electrode composites for electrochemical ion separation from aqueous solutions, and methods thereof13 Aug 2026US 2026/0234825 A1Lithios Inc.
- Methods and apparatuses for galvanic ion extraction6 Aug 2026US 2026/0225924 A1Lithios Inc.
- Water desalination systems6 Aug 2026US 2026/0225934 A1Badwater Alchemy Technologies Inc.
- Methods and systems for pfas destruction using photochemical/electrochemical reduction of reagents16 Jul 2026US 2026/0200765 A1Claros Technologies Inc.
Most cited
By later US patents
- 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
- Faucet mounted purifier54US 4,676,896 A1987
- Method and apparatus for removing contaminants from conduits and fluid columns10US 7,252,752 B22007
- Solids removal system and method8US 9,751,790 B21612017 Alberta Ltd. · 2017