C25B 9/17
Cells comprising dimensionally-stable non-movable electrodes
Official title: Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof
C25B9/17 (Cells comprising dimensionally-stable non-movable electrodes) appears on 2,934 US grants and 4,508 published applications in this corpus.
Search patents in C25B- Granted patents
- 2,934
- Published applications
- 4,508
- Assignees
- 1,556
- Inventors
- 7,748
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 21 | 0 |
| 1978 | 22 | 0 |
| 1979 | 14 | 0 |
| 1980 | 25 | 0 |
| 1981 | 39 | 0 |
| 1982 | 40 | 0 |
| 1983 | 37 | 0 |
| 1984 | 35 | 0 |
| 1985 | 25 | 0 |
| 1986 | 20 | 0 |
| 1987 | 18 | 0 |
| 1988 | 27 | 0 |
| 1989 | 22 | 0 |
| 1990 | 15 | 0 |
| 1991 | 12 | 0 |
| 1992 | 16 | 0 |
| 1993 | 18 | 0 |
| 1994 | 25 | 0 |
| 1995 | 23 | 0 |
| 1996 | 17 | 0 |
| 1997 | 21 | 0 |
| 1998 | 31 | 0 |
| 1999 | 27 | 0 |
| 2000 | 24 | 0 |
| 2001 | 30 | 10 |
| 2002 | 30 | 19 |
| 2003 | 22 | 30 |
| 2004 | 21 | 47 |
| 2005 | 18 | 44 |
| 2006 | 18 | 37 |
| 2007 | 18 | 47 |
| 2008 | 23 | 59 |
| 2009 | 16 | 54 |
| 2010 | 24 | 50 |
| 2011 | 31 | 69 |
| 2012 | 36 | 99 |
| 2013 | 37 | 122 |
| 2014 | 61 | 155 |
| 2015 | 86 | 201 |
| 2016 | 99 | 206 |
| 2017 | 133 | 213 |
| 2018 | 123 | 191 |
| 2019 | 172 | 250 |
| 2020 | 151 | 274 |
| 2021 | 170 | 285 |
| 2022 | 186 | 345 |
| 2023 | 225 | 406 |
| 2024 | 215 | 488 |
| 2025 | 243 | 483 |
| 2026 | 153 | 324 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrogen production cathode and anode6 Oct 2026US 12,753,518 B2Civilized Power, LLC
- Membrane electrode assembly for PEM water electrolysis capable of improving the electrical conductivity of the electrode layer and method of manufacturing thereof6 Oct 2026US 12,753,520 B2Korea Institute of Energy Research
- Electrolysis cell, electrolyzer and method for reducing CO26 Oct 2026US 12,753,522 B2Covestro Intellectual Property GmbH & Co.KG
- Aqueous Zn||NO2 electrochemical cell6 Oct 2026US 12,756,037 B2City University of Hong Kong
- Multi-cell COx electrolyzer stacks29 Sep 2026US 12,747,510 B2Twelve Benefit Corporation
- Ammonia cracker8 Oct 2026US 2026/0308771 A1
- Co2 and h2o co-electrolyser system8 Oct 2026US 2026/0308775 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Components for electrolytic apparatus and electrolytic apparatus8 Oct 2026US 2026/0308777 A1Robert Bosch GmbH
- Electrode composition for proton exchange membrane water electrolysis, electrode for proton exchange membrane water electrolysis, anode, membrane-electrode assembly, and proton exchange membrane water electrolysis cell8 Oct 2026US 2026/0308785 A1Hyundai Motor Company
- Oxygen evolution reaction catalyst and method for its preparation8 Oct 2026US 2026/0308786 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Deposition of catalytic electrodes on ion-exchange membranes254US 4,364,803 AOronzio de Nora Impianti Elettrochimici S.p.A. · 1982
- Proton conducting polymers used as membranes200US 5,525,436 ACase Western Reserve University · 1996
- Membrane electrode assembly181US 5,879,828 AMinnesota Mining and Manufacturing Company · 1999
- Production of halogens in an electrolysis cell with catalytic electrodes bonded to an ion transporting membrane and an oxygen depolarized cathode156US 4,191,618 AGeneral Electric Company · 1980
- Process of manufacturing porous separator for electrochemical power supply154US 5,948,464 AImra America, Inc. · 1999