C25B 3/20
Processes
C25B3/20 (Processes) appears on 1,426 US grants and 1,704 published applications in this corpus.
Search patents in C25B- Granted patents
- 1,426
- Published applications
- 1,704
- Assignees
- 758
- Inventors
- 3,570
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 34 | 0 |
| 1977 | 31 | 0 |
| 1978 | 35 | 0 |
| 1979 | 16 | 0 |
| 1980 | 21 | 0 |
| 1981 | 21 | 0 |
| 1982 | 17 | 0 |
| 1983 | 25 | 0 |
| 1984 | 37 | 0 |
| 1985 | 27 | 0 |
| 1986 | 41 | 0 |
| 1987 | 35 | 0 |
| 1988 | 21 | 0 |
| 1989 | 19 | 0 |
| 1990 | 27 | 0 |
| 1991 | 19 | 0 |
| 1992 | 20 | 0 |
| 1993 | 12 | 0 |
| 1994 | 18 | 0 |
| 1995 | 9 | 0 |
| 1996 | 16 | 0 |
| 1997 | 7 | 0 |
| 1998 | 6 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 16 | 3 |
| 2002 | 10 | 10 |
| 2003 | 7 | 9 |
| 2004 | 9 | 14 |
| 2005 | 4 | 11 |
| 2006 | 3 | 11 |
| 2007 | 5 | 8 |
| 2008 | 5 | 21 |
| 2009 | 5 | 12 |
| 2010 | 8 | 12 |
| 2011 | 12 | 33 |
| 2012 | 10 | 44 |
| 2013 | 21 | 70 |
| 2014 | 34 | 94 |
| 2015 | 46 | 60 |
| 2016 | 45 | 90 |
| 2017 | 39 | 75 |
| 2018 | 53 | 77 |
| 2019 | 56 | 92 |
| 2020 | 67 | 98 |
| 2021 | 65 | 98 |
| 2022 | 65 | 118 |
| 2023 | 73 | 135 |
| 2024 | 82 | 202 |
| 2025 | 92 | 173 |
| 2026 | 60 | 134 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Integrated hydrogen production system and method of use1 Sep 2026US 12,723,313 B2Utility Global, Inc.
- 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
- Producing a stable activated nickel oxide hydroxide foam electrode8 Oct 2026US 2026/0308783 A1Evonik Operations GmbH
- Materials, panels and uses thereof8 Oct 2026US 2026/0308784 A1B. G. Negev Technologies and Applications Ltd., At Ben-Gurion University
- 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
- Electrochemical exsolution of metal/alloy nanoparticles1 Oct 2026US 2026/0297774 A1Ohio State Innovation Foundation
Most cited
By later US patents
- Electrochemical hydrogenation of nicotinamide adenine dinucleotide401US 4,526,661 ABASF SE · 1985
- Fuel cell type reactor and method for producing a chemical compound by using the same235US 6,569,309 B2Asahi Kasei Kabushiki Kaisha · 2003
- Solid multi-component membranes, electrochemical reactor components, electrochemical reactors and use of membranes, reactor components, and reactor for oxidation reactions202US 5,306,411 AThe Standard Oil Company · 1994
- Gas fixation solar cell using gas diffusion semiconductor electrode151US 4,240,882 AInstitute of Gas Technology · 1980
- Recycling of carbon dioxide into methyl alcohol and related oxygenates for hydrocarbons143US 5,928,806 A1999