C25B 9/01
Electrolytic cells characterised by shape or form
C25B9/01 (Electrolytic cells characterised by shape or form) appears on 220 US grants and 259 published applications in this corpus.
Search patents in C25B- Granted patents
- 220
- Published applications
- 259
- Assignees
- 220
- Inventors
- 701
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 0 | 3 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 2 |
| 2007 | 3 | 7 |
| 2008 | 1 | 2 |
| 2009 | 2 | 8 |
| 2010 | 3 | 5 |
| 2011 | 0 | 5 |
| 2012 | 3 | 9 |
| 2013 | 5 | 11 |
| 2014 | 5 | 12 |
| 2015 | 8 | 11 |
| 2016 | 9 | 14 |
| 2017 | 9 | 14 |
| 2018 | 6 | 6 |
| 2019 | 11 | 11 |
| 2020 | 5 | 10 |
| 2021 | 6 | 15 |
| 2022 | 12 | 24 |
| 2023 | 14 | 22 |
| 2024 | 13 | 24 |
| 2025 | 15 | 21 |
| 2026 | 10 | 17 |
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
- Portable hydrogen-oxygen generator22 Sep 2026US 12,742,246 B2Dalian Institute of Chemical Physics, Chinese Academy of Sciences
- Integrated hydrogen production system and method of use1 Sep 2026US 12,723,313 B2Utility Global, Inc.
- Bismuth-zinc based electrocatalyst for conversion of carbon dioxide to liquid fuels19 May 2026US 12,630,937 B2King Fahd University of Petroleum and Minerals
- Electrochemical producer for hydrogen or carbon monoxide5 May 2026US 12,618,160 B2Utility Global, Inc.
- Rotational Electrolysis Arrangement27 Aug 2026US 2026/0250856 A1
- Electrochemical producer for hydrogen or carbon monoxide20 Aug 2026US 2026/0242957 A1Utility Global, Inc.
- Triboelectricity-based electrolysis system13 Aug 2026US 2026/0234813 A1Ming Chi University of Technology
- Tubular penetration electrode-based flow cell reaction system and operation method6 Aug 2026US 2026/0226633 A1Southeast University
- Water electrolysis cell for use in water electrolysis apparatus, and water electrolysis apparatus23 Jul 2026US 2026/0209954 A1Panasonic Holdings Corporation
Most cited
By later US patents
- Series planar design for solid electrolyte oxygen pump78US 5,750,279 AAir Products and Chemicals, Inc. · 1998
- Chemical reactor system68US 6,942,767 B1T-Graphic, LLC · 2005
- Apparatus for electrochemical treatment of water and/or water solutions64US 5,628,888 ARSCECAT, USA, Inc. · 1997
- Chlorine gas generator apparatus61US 4,290,873 A1981
- Air pump-assisted hydrogen/oxygen fuel cell for use with internal combustion engine52US 5,458,095 AEnergy Reductions Systems, Inc. · 1995