C25B 9/07
Common duct cells
C25B9/07 (Common duct cells) appears on 69 US grants and 83 published applications in this corpus.
Search patents in C25B- Granted patents
- 69
- Published applications
- 83
- Assignees
- 73
- Inventors
- 209
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 3 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 2 | 4 |
| 2017 | 0 | 4 |
| 2018 | 1 | 2 |
| 2019 | 4 | 9 |
| 2020 | 4 | 2 |
| 2021 | 2 | 8 |
| 2022 | 5 | 10 |
| 2023 | 3 | 9 |
| 2024 | 7 | 10 |
| 2025 | 6 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cox electrolyzer cell flow fields and gas diffusion layers18 Aug 2026US 12,709,813 B2Twelve Benefit Corporation
- Hydrogen-oxygen mixture gas producing and supplying device14 Jul 2026US 12,680,175 B2H2Tube Co., Ltd.
- Electrochemical systems and methods of use9 Jun 2026US 12,649,977 B2H2Pro Ltd
- Electrolytic liquid production device18 Nov 2025US 12,473,655 B2Panasonic Intellectual Property Management Co., Ltd.
- Electrochemical breaking of C—C bonds14 Oct 2025US 12,442,090 B2Wisconsin Alumni Research Foundation
- System and method for hydrogen storage and release23 Jul 2026US 2026/0209975 A1Ayrton Energy Inc.
- Electrolyzer with dynamic membrane13 Nov 2025US 2025/0346505 A1ASML Netherlands B. V.
- Electrolysis Reactor6 Nov 2025US 2025/0341005 A1Universiteit Antwerpen
- Electrolytic solution generation device11 Sep 2025US 2025/0283233 A1Panasonic Intellectual Property Management Co., Ltd.
- Single-chamber microbial electrolysis cell system without ion exchange membrane and method for producing clean gas such as hydrogen and biogas using same4 Sep 2025US 2025/0277175 A1Pusan National University Industry-University Cooperation Foundation
Most cited
By later US patents
- Air pump-assisted hydrogen/oxygen fuel cell for use with internal combustion engine52US 5,458,095 AEnergy Reductions Systems, Inc. · 1995
- Electrolytic production of alkaline peroxide solutions47US 3,969,201 ACanadian Patents and Development Limited · 1976
- Apparatus for electrochemical reactions44US 4,118,305 ACanadian Patents and Development Limited · 1978
- Hydrogen-oxygen gas generator and hydrogen-oxygen gas generating method using the generator32US 7,318,885 B2Japan Techno Co., Ltd. · 2008
- Polymer membrane based electrolytic cell and process for the direct generation of hydrogen peroxide in liquid streams27US 5,645,700 AEltron Research, Inc. · 1997