C01B 3/042
Decomposition of water
Official title: Decomposition of water (by electrolysis of water C25B1/04)
C01B3/042 (Decomposition of water) appears on 485 US grants and 659 published applications in this corpus.
Search patents in C01B- Granted patents
- 485
- Published applications
- 659
- Assignees
- 394
- Inventors
- 1,496
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 7 | 0 |
| 1978 | 7 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 10 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 9 |
| 2003 | 6 | 7 |
| 2004 | 4 | 14 |
| 2005 | 9 | 13 |
| 2006 | 7 | 15 |
| 2007 | 1 | 22 |
| 2008 | 4 | 24 |
| 2009 | 11 | 29 |
| 2010 | 9 | 19 |
| 2011 | 13 | 33 |
| 2012 | 13 | 33 |
| 2013 | 16 | 29 |
| 2014 | 18 | 37 |
| 2015 | 26 | 41 |
| 2016 | 24 | 35 |
| 2017 | 24 | 23 |
| 2018 | 21 | 27 |
| 2019 | 32 | 28 |
| 2020 | 16 | 32 |
| 2021 | 22 | 26 |
| 2022 | 21 | 26 |
| 2023 | 19 | 34 |
| 2024 | 21 | 42 |
| 2025 | 26 | 37 |
| 2026 | 14 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and method for isolating hydrogen from water11 Aug 2026US 12,703,628 B2Rtx Corporation
- Flexible artificial leaves for hydrogen production and methods for making4 Aug 2026US 12,697,599 B2King Abdullah University of Science and Technology
- Method and system of thermolysis based hydrogen and oxygen generation21 Jul 2026US 12,686,615 B2Cosmic Energy Power Inc.
- Inorganic compound, dispersion and method for producing same, and film and method for producing same, inorganic compound, method for producing methane and hydrogen, dispersion and method for producing same, and film and method for producing same23 Jun 2026US 12,661,639 B2Japan Material Technologies Corporation
- Ammonification device and method using plasma discharging in water9 Jun 2026US 12,649,139 B2Korea Institute of Machinery & Materials
- Hydrogen and oxygen generation using detonation waves1 Oct 2026US 2026/0296883 A1Green Constellation Inc.
- Inorganic compound, dispersion and method for producing same, and film and method for producing same, inorganic compound, method for producing methane and hydrogen, dispersion and method for producing same, and film and method for producing same6 Aug 2026US 2026/0225084 A1Japan Material Technologies Corporation
- Quantum-Controlled System for Hydrogen Extraction via Floquet-Engineered Bond Destabilization and AI-Regulated Reinjection Cycle6 Aug 2026US 2026/0225878 A1
- Photocatalytic composite material and method for manufacturing the same9 Jul 2026US 2026/0192290 A1Materials Analysis Technology Inc.
- Composite catalyst for ammonia decomposition and hydrogen production and method for producing the same18 Jun 2026US 2026/0166526 A1Korea Institute of Energy Research
Most cited
By later US patents
- Process for the sensitization of an oxidation/reduction photocatalyst, and photocatalyst thus obtained420US 4,684,537 AR. E. Stiftung · 1987
- Photoelectrochemical device containing a quantum confined group IV semiconductor nanoparticle133US 6,361,660 B12002
- Photochemical diodes62US 4,094,751 AAllied Chemical Corporation · 1978
- Catalytic production of hydrogen peroxide61US 5,480,629 AThe Trustees of Princeton University · 1996
- Process and System for producing synthetic liquid hydrocarbon fuels60US 7,420,004 B2The United States of America as represented by the Secretary of the Navy · 2008