C02F 2209/24
Co2
C02F2209/24 (Co2) appears on 63 US grants and 99 published applications in this corpus.
Search patents in C02F- Granted patents
- 63
- Published applications
- 99
- Assignees
- 68
- Inventors
- 198
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 4 |
| 2013 | 3 | 6 |
| 2014 | 2 | 1 |
| 2015 | 3 | 5 |
| 2016 | 1 | 5 |
| 2017 | 5 | 2 |
| 2018 | 0 | 3 |
| 2019 | 2 | 7 |
| 2020 | 3 | 5 |
| 2021 | 4 | 7 |
| 2022 | 3 | 5 |
| 2023 | 6 | 10 |
| 2024 | 6 | 11 |
| 2025 | 4 | 13 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Water treatment method, water treatment system, carbonized combustion material, and method for producing carbonized combustion material24 Feb 2026US 12,559,399 B2Novelgen Co., Ltd.
- Equipment and process for liquid/gas reaction or mix6 Jan 2026US 12,515,179 B2
- Methods and compositions for treatment of concrete wash water30 Dec 2025US 12,508,738 B2Carboncure Technologies Inc.
- Systems and methods for water production, treatment, adjustment and storage2 Dec 2025US 12,486,184 B2Source Global, PBC
- Systems and methods for managing filtration media beds in gas and liquid filtration apparatus27 May 2025US 12,312,548 B2Pure Air Filtration, LLC
- Risk assessment scoring for water treatment systems13 Aug 2026US 2026/0236870 A1Evoqua Water Technologies LLC
- Measurement method and system for precipitation speed of inorganic salt in water, electronic device, and storage medium16 Jul 2026US 2026/0200780 A1Jiyuan Qingyuan Water Treatment Co., Ltd.
- Device for measuring the alkalinity of a liquid present in an external reservoir and process for measuring the alkalinity of a liquid present in an external reservoir4 Jun 2026US 2026/0152421 A1Aquarino Comercio AutomaçãO E ServiçOs Ltda
- Systems and methods for carbon sequestration using enhanced weathering30 Apr 2026US 2026/0115659 A1Yale University
- Systems and methods for carbon sequestration using enhanced weathering26 Mar 2026US 2026/0084104 A1Yale University
Most cited
By later US patents
- Biological treatment of materials92US 5,846,424 AKhudenko Engineering, Inc. · 1998
- Automated closed recirculating aquaculture filtration system and method83US 5,961,831 ABoard of Regents, The University of Texas System · 1999
- Automated closed recirculating aquaculture filtration system83US 6,171,480 B2Board of Regents, The University of Texas System · 2001
- In-sewer treatment of wastewater and sludges81US 6,015,496 A2000
- Treatment of wastewater and sludges77US 5,616,241 A1997