C25B 3/26
Of carbon dioxide
Official title: of carbon dioxide
C25B3/26 (Of carbon dioxide) appears on 366 US grants and 807 published applications in this corpus.
Search patents in C25B- Granted patents
- 366
- Published applications
- 807
- Assignees
- 295
- Inventors
- 1,405
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 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 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 6 |
| 2012 | 1 | 14 |
| 2013 | 7 | 22 |
| 2014 | 7 | 18 |
| 2015 | 9 | 21 |
| 2016 | 10 | 26 |
| 2017 | 12 | 30 |
| 2018 | 14 | 31 |
| 2019 | 23 | 38 |
| 2020 | 23 | 38 |
| 2021 | 29 | 58 |
| 2022 | 33 | 82 |
| 2023 | 36 | 82 |
| 2024 | 49 | 126 |
| 2025 | 59 | 113 |
| 2026 | 34 | 96 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-cell COx electrolyzer stacks29 Sep 2026US 12,747,510 B2Twelve Benefit Corporation
- Device and method for carbon dioxide electrolysis or carbon monoxide electrolysis22 Sep 2026US 12,742,248 B2Siemens Energy Global GmbH & Co. KG
- Catalyst structure for electrochemical CO2 reduction, and method for producing same25 Aug 2026US 12,716,137 B2Seoul National University R&Db Foundation
- Electrochemical conversion of carbon dioxide to form an organic acid18 Aug 2026US 12,709,811 B2Uop LLC
- Cox electrolyzer cell flow fields and gas diffusion layers18 Aug 2026US 12,709,813 B2Twelve Benefit Corporation
- Re-activation process of gas diffusion electrode8 Oct 2026US 2026/0308788 A1Vito NV
- Systems and methods for converting co2 to one or more multicarbon products1 Oct 2026US 2026/0297765 A1Rensselaer Polytechnic Institute
- Carbon dioxide absorbent and carbon dioxide separation device24 Sep 2026US 2026/0284584 A1Kabushiki Kaisha Toshiba
- Electrochemical reduction of co2 emissions to a green reduction product and its salts24 Sep 2026US 2026/0286539 A1Saudi Arabian Oil Company
- Electrolyte Solution for Reversible CO2 Capture and Electrochemical Conversion24 Sep 2026US 2026/0286540 A1UNM Rainforest Innovations
Most cited
By later US patents
- Recycling of carbon dioxide into methyl alcohol and related oxygenates for hydrocarbons143US 5,928,806 A1999
- Electrolytic synthesis of methanol from CO.sub.2110US 3,959,094 AThe United States of America as represented by the United States Energy Research and Development Administration · 1976
- Photoelectrochemical reduction of carbon oxides105US 5,022,970 AGas Research Institute · 1991
- Electrochemical reduction of aqueous carbon dioxide to methanol93US 4,609,441 AGas Research Institute · 1986
- Electrolysis cell and method of use91US 4,921,586 AUnited Technologies Corporation · 1990