C25B 11/032
Gas diffusion electrodes
C25B11/032 (Gas diffusion electrodes) appears on 232 US grants and 582 published applications in this corpus.
Search patents in C25B- Granted patents
- 232
- Published applications
- 582
- Assignees
- 312
- Inventors
- 1,382
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 7 | 2 |
| 2003 | 1 | 3 |
| 2004 | 2 | 5 |
| 2005 | 2 | 5 |
| 2006 | 2 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 5 |
| 2010 | 3 | 0 |
| 2011 | 4 | 1 |
| 2012 | 1 | 9 |
| 2013 | 0 | 10 |
| 2014 | 1 | 7 |
| 2015 | 6 | 7 |
| 2016 | 1 | 13 |
| 2017 | 3 | 8 |
| 2018 | 6 | 10 |
| 2019 | 9 | 22 |
| 2020 | 5 | 27 |
| 2021 | 20 | 23 |
| 2022 | 9 | 43 |
| 2023 | 22 | 63 |
| 2024 | 26 | 117 |
| 2025 | 29 | 112 |
| 2026 | 22 | 84 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Production of chlorine, carbon monoxide and optionally hydrogen29 Sep 2026US 12,747,507 B2
- 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
- Pump free alkaline electrolyte membrane water electrolytic device25 Aug 2026US 12,716,135 B2The United States of America as represented by the Secretary of the Army
- Electrochemical conversion of carbon dioxide to form an organic acid18 Aug 2026US 12,709,811 B2Uop LLC
- Re-activation process of gas diffusion electrode8 Oct 2026US 2026/0308788 A1Vito NV
- 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
- Measuring device, measuring table comprising a measuring device, and method for measuring the thickness of a flat component, in particular a gas diffusion layer24 Sep 2026US 2026/0287342 A1Siemens Energy Global GmbH & Co. KG
- Membrane electrode for alkaline water electrolysis for hydrogen production and preparation method therefor, and electrolytic cell17 Sep 2026US 2026/0275542 A1China Energy Investment Corporation Limited
Most cited
By later US patents
- Electrochemical cell having gas pressurized contact between laminar, gas diffusion electrode and current collector59US 4,722,773 AThe Dow Chemical Company · 1988
- Gas permeable electrode59US 4,931,168 ATanaka Kikinzoku Kogyo K.K. · 1990
- Gold electrocatalyst, methods for preparing it, electrodes prepared therefrom and methods of using them48US 5,041,195 APhysical Sciences, Inc. · 1991
- Gas diffusion electrode47US 5,618,392 ATanaka Kikinzoku Kogyo K.K. · 1997
- Electrochemical peroxide generator43US 5,565,073 A1996