C02F 2209/235
In the gas phase
Official title: in the gas phase
C02F2209/235 (In the gas phase) appears on 33 US grants and 58 published applications in this corpus.
Search patents in C02F- Granted patents
- 33
- Published applications
- 58
- Assignees
- 30
- Inventors
- 115
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 5 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 3 | 3 |
| 2014 | 3 | 5 |
| 2015 | 1 | 3 |
| 2016 | 4 | 0 |
| 2017 | 4 | 3 |
| 2018 | 0 | 9 |
| 2019 | 1 | 3 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 7 | 11 |
| 2023 | 1 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 0 |
| 2026 | 2 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- System and method for wastewater treatment control through microorganism settling optimization6 Oct 2026US 12,753,099 B1
- System and methods for wastewater treatment31 Mar 2026US 12,590,021 B2Marquette University
- Wash water processing apparatus and sterilization and water-purification apparatus, and wash water processing method12 Nov 2024US 12,139,430 B2Kitz Corporation
- Wastewater treatment device and wastewater treatment method13 Aug 2024US 12,060,288 B2IHI Corporation
- Aqueous ozone generator controller and methods2 May 2023US 11,638,768 B2
- Ozone faucet including a gas mitigation fan16 Jul 2026US 2026/0200773 A1Delta Faucet Company
- Aqueous ozone generator cartridge27 Apr 2023US 2023/0126491 A1
- System and Methods for Wastewater Treatment1 Dec 2022US 2022/0380244 A1Marquette University
- Aqueous ozone sanitizing system3 Nov 2022US 2022/0347330 A13Oe Scientific, LLC
- Device for advanced degradation of organic wastewater and application thereof1 Sep 2022US 2022/0274857 A1Zhejiang Gongshang University
Most cited
By later US patents
- Ozone sensor and method for use of same in water purification system47US 6,280,633 B1Fantom Technologies Inc. · 2001
- System and method of water treatment11US 8,388,850 B2Neos International, LLC · 2013
- Method and apparatus for programably treating water in a water cooler10US 8,366,920 B2S.I.P. Technologies L.L.C. · 2013
- Ozone-based odor control system for controlling hydrogen sulfide and other foul odors6US 8,337,759 B1Energy Engineering Systems, LLC · 2012
- Method and apparatus for programably treating water in a water cooler5US 8,500,993 B2S.I.P. Technologies L.L.C. · 2013