C01B 3/04
By decomposition of inorganic compounds
Official title: by decomposition of inorganic compounds (reversible storage of hydrogen C01B3/0018)
C01B3/04 (By decomposition of inorganic compounds) appears on 949 US grants and 1,361 published applications in this corpus.
Search patents in C01B- Granted patents
- 949
- Published applications
- 1,361
- Assignees
- 695
- Inventors
- 2,978
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 11 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 10 | 0 |
| 1987 | 7 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 5 |
| 2002 | 7 | 16 |
| 2003 | 9 | 17 |
| 2004 | 7 | 19 |
| 2005 | 16 | 19 |
| 2006 | 10 | 28 |
| 2007 | 6 | 31 |
| 2008 | 9 | 36 |
| 2009 | 17 | 46 |
| 2010 | 19 | 37 |
| 2011 | 22 | 50 |
| 2012 | 20 | 48 |
| 2013 | 27 | 51 |
| 2014 | 39 | 64 |
| 2015 | 47 | 74 |
| 2016 | 46 | 57 |
| 2017 | 41 | 43 |
| 2018 | 44 | 50 |
| 2019 | 52 | 44 |
| 2020 | 32 | 68 |
| 2021 | 43 | 40 |
| 2022 | 38 | 63 |
| 2023 | 55 | 79 |
| 2024 | 56 | 154 |
| 2025 | 82 | 122 |
| 2026 | 46 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Immobolized organometallic catalyst and application of same6 Oct 2026US 12,752,265 B2Saudi Arabian Oil Company
- Method for synthesising a liquid organic hydrogen carrier (LOHC) loaded with hydrogen using hydrogen produced from a methanisation digestate6 Oct 2026US 12,753,071 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Process and apparatus for cracking ammonia22 Sep 2026US 12,741,867 B2Air Products and Chemicals, Inc.
- Producing hydrogen from hydrogen sulfide1 Sep 2026US 12,722,970 B2Saudi Arabian Oil Company
- Hydrogen production system1 Sep 2026US 12,722,971 B2Mitsubishi Heavy Industries, Ltd.
- Bimetallic catalysts supported on lanthanum manganite (lamno3) for ammonia decomposition8 Oct 2026US 2026/0307984 A1King Fahd University of Petroleum and Minerals
- Reactor, system and process for cracking ammonia8 Oct 2026US 2026/0307985 A1Johnson Matthey Davy Technologies Limited
- Ammonia cracking system and method for cracking ammonia8 Oct 2026US 2026/0309325 A1IHI Corporation
- Hydrogen and oxygen generation using detonation waves1 Oct 2026US 2026/0296883 A1Green Constellation Inc.
- Tri-metallic catalyst for ammonia cracking, preparation method therefor, and production method for hydrogen using same24 Sep 2026US 2026/0284640 A1Heesung Catalysts Corporation
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
- Composite hydrogen separation element and module185US 5,498,278 ABend Research, Inc. · 1996
- Composite hydrogen separation element and module164US 5,645,626 ABend Research, Inc. · 1997
- Photoelectrochemical device containing a quantum confined group IV semiconductor nanoparticle133US 6,361,660 B12002
- Composite hydrogen separation metal membrane129US 5,393,325 ABend Research, Inc. · 1995