C02F 2101/34
Containing oxygen
Official title: containing oxygen
C02F2101/34 (Containing oxygen) appears on 515 US grants and 798 published applications in this corpus.
Search patents in C02F- Granted patents
- 515
- Published applications
- 798
- Assignees
- 543
- Inventors
- 2,158
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 3 |
| 2002 | 3 | 6 |
| 2003 | 1 | 3 |
| 2004 | 3 | 5 |
| 2005 | 4 | 10 |
| 2006 | 3 | 4 |
| 2007 | 6 | 7 |
| 2008 | 4 | 8 |
| 2009 | 6 | 10 |
| 2010 | 1 | 21 |
| 2011 | 3 | 20 |
| 2012 | 10 | 21 |
| 2013 | 10 | 11 |
| 2014 | 11 | 34 |
| 2015 | 17 | 50 |
| 2016 | 18 | 41 |
| 2017 | 22 | 47 |
| 2018 | 27 | 36 |
| 2019 | 23 | 50 |
| 2020 | 39 | 47 |
| 2021 | 43 | 87 |
| 2022 | 45 | 61 |
| 2023 | 39 | 66 |
| 2024 | 49 | 56 |
| 2025 | 45 | 51 |
| 2026 | 31 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for reducing risks of composite pollutants in sewage1 Sep 2026US 12,722,985 B1Nanjing University
- Nanoporous pure silica zeolites25 Aug 2026US 12,714,980 B2University of Puerto Rico
- Water treatment and purification method25 Aug 2026US 12,715,781 B2Imam Abdulrahman Bin Faisal University
- Fluids, solids and heavy component removal from reclaimer process liquid streams18 Aug 2026US 12,708,872 B2Axens
- Method and system for the efficient and sustainable electrochemical treatment of wastewater14 Jul 2026US 12,679,752 B2Axine Water Technologies Inc.
- Process and system for degrading a chemical compound in a liquid stream1 Oct 2026US 2026/0296942 A1Aquasoil S.R.L.
- Methodology to remove soluble hydrocarbons from contaminated wastewater in a wastewater pond10 Sep 2026US 2026/0265096 A1Saudi Arabian Oil Company
- Method for reducing risks of composite pollutants in sewage3 Sep 2026US 2026/0257942 A1Nanjing University
- A treatment method of at least one colloidal toc present in wastewater27 Aug 2026US 2026/0250163 A1Snf Group
- Methods and systems for treating aqueous effluent27 Aug 2026US 2026/0250170 A1Gradiant Corporation
Most cited
By later US patents
- Method of electrolysis employing a doped diamond anode to oxidize solutes in wastewater49US 5,399,247 AEastman Kodak Company · 1995
- Water treatment processes and devices utilizing hydrodynamic cavitation49US 7,247,244 B2Five Star Technologies, Inc. · 2007
- Acoustic/pressure wave-driven separation device46US 8,075,786 B2The Board of Regents of the University of Oklahoma · 2011
- Method for removing oxidizable organic compounds from an aqueous solution44US 5,320,718 AUnited Technologies Corporation · 1994
- Decontamination of water by photolytic oxidation/reduction utilizing near blackbody radiation37US 6,200,466 B1New Star Lasers, Inc. · 2001