C25B 1/55
Photoelectrolysis
C25B1/55 (Photoelectrolysis) appears on 501 US grants and 733 published applications in this corpus.
Search patents in C25B- Granted patents
- 501
- Published applications
- 733
- Assignees
- 344
- Inventors
- 1,437
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 11 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 11 | 0 |
| 1984 | 11 | 0 |
| 1985 | 12 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 5 |
| 2004 | 0 | 4 |
| 2005 | 4 | 15 |
| 2006 | 3 | 6 |
| 2007 | 3 | 7 |
| 2008 | 3 | 14 |
| 2009 | 6 | 14 |
| 2010 | 5 | 25 |
| 2011 | 11 | 23 |
| 2012 | 9 | 38 |
| 2013 | 13 | 51 |
| 2014 | 25 | 46 |
| 2015 | 29 | 57 |
| 2016 | 21 | 59 |
| 2017 | 32 | 53 |
| 2018 | 38 | 41 |
| 2019 | 49 | 55 |
| 2020 | 30 | 40 |
| 2021 | 28 | 42 |
| 2022 | 28 | 30 |
| 2023 | 27 | 34 |
| 2024 | 15 | 30 |
| 2025 | 19 | 25 |
| 2026 | 9 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen station, control unit for hydrogen station, and program for hydrogen station8 Sep 2026US 12,729,446 B2Yazaki Corporation
- Devices and methods for electrocatalytic hydrogen production8 Sep 2026US 12,729,449 B2Board of Trustees of the University of Arkansas
- Flexible artificial leaves for hydrogen production and methods for making4 Aug 2026US 12,697,599 B2King Abdullah University of Science and Technology
- Catalyst for solar-driven electrocatalytic overall water splitting and methods of making and using thereof2 Jun 2026US 12,644,192 B2City University of Hong Kong
- Large scale, monodispersed octahedral BiVO4 microcrystals, photostability and water oxidation thereof12 May 2026US 12,624,468 B2King Fahd University of Petroleum and Minerals
- Respiration of nanoparticles by electrogenic bacteria for photo-catalytic hydrogen evolution13 Aug 2026US 2026/0234673 A1University of Rochester
- Hybrid electrode comprising plasmonic nanoparticles and electrolysis system comprising the same30 Jul 2026US 2026/0218401 A1Poetics Hydrogen Inc.
- Carbon dioxide recovery apparatus and carbon dioxide recovery method23 Jul 2026US 2026/0208100 A1Kankyo Kougaku, Ltd.
- Water electrolysis cell for use in water electrolysis apparatus, and water electrolysis apparatus23 Jul 2026US 2026/0209954 A1Panasonic Holdings Corporation
- Hydrogen production via seawater splitting23 Jul 2026US 2026/0209956 A1The Regents of the University of Michigan
Most cited
By later US patents
- Organic conductive films for semiconductor electrodes424US 4,461,691 AThe United States of America as represented by the United States Department of Energy · 1984
- Gas fixation solar cell using gas diffusion semiconductor electrode151US 4,240,882 AInstitute of Gas Technology · 1980
- Chemical anchoring of organic conducting polymers to semiconducting surfaces135US 4,476,003 AThe United States of America as represented by the United States Department of Energy · 1984
- Photoelectrochemical system and a method of using the same118US 4,381,978 AEngelhard Corporation · 1983
- Highly conductive photoelectrochemical electrodes and uses thereof112US 4,521,499 AUnion Oil Company of California · 1985