B01J 2231/62
Reductions in general of inorganic substrates
Official title: Reductions in general of inorganic substrates, e.g. formal hydrogenation, e.g. of N2
B01J2231/62 (Reductions in general of inorganic substrates) appears on 111 US grants and 159 published applications in this corpus.
Search patents in B01J- Granted patents
- 111
- Published applications
- 159
- Assignees
- 121
- Inventors
- 500
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 2 | 4 |
| 2010 | 0 | 1 |
| 2011 | 2 | 7 |
| 2012 | 0 | 6 |
| 2013 | 3 | 7 |
| 2014 | 3 | 7 |
| 2015 | 7 | 21 |
| 2016 | 6 | 7 |
| 2017 | 14 | 8 |
| 2018 | 8 | 8 |
| 2019 | 11 | 9 |
| 2020 | 5 | 7 |
| 2021 | 7 | 7 |
| 2022 | 4 | 13 |
| 2023 | 4 | 10 |
| 2024 | 5 | 16 |
| 2025 | 9 | 8 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ammonia manufacturing apparatus and ammonia manufacturing method1 Sep 2026US 12,723,315 B2Kabushiki Kaisha Toshiba
- Carbon dioxide reducing photocatalyst and preparation method therefor, and carbon dioxide reducing method9 Jun 2026US 12,649,149 B2Korea University Research Foundation and Business Foundation, Sejong Campus
- Hydrogen storage based on aqueous formate- bicarbonate (hydrogen carbonate) equilibrium9 Jun 2026US 12,649,654 B2Hydrogen Revolution Hungary Kft.
- Formate production method, formic acid production method, and antifreezing agent production method21 Apr 2026US 12,606,513 B2Nitto Denko Corporation
- Ammonia manufacturing apparatus and ammonia manufacturing method10 Feb 2026US 12,546,018 B2Kabushiki Kaisha Toshiba
- Catalyst for ammonia synthesis obtained by combining hydrogen-containing aluminum and iron3 Sep 2026US 2026/0257929 A1Institute of Science Tokyo
- Compositions and methods for mitigating aggregation of and recycling of nanoscale catalysts20 Aug 2026US 2026/0241374 A1Massachusetts Institute of Technology
- Ammonia synthesis catalyst, ammonia production device, and ammonia production method6 Aug 2026US 2026/0225088 A1Idemitsu Kosan Co., Ltd.
- Method for producing nitrogenated compound6 Aug 2026US 2026/0226088 A1Idemitsu Kosan Co., Ltd.
- Ethylene production method, carbon dioxide reduction electrode, and carbon dioxide reduction apparatus6 Aug 2026US 2026/0226632 A1Sumitomo Chemical Company, Limited
Most cited
By later US patents
- Homogeneous catalyst formulations for methanol production67US 4,992,480 AAssociated Universities, Inc. · 1991
- Preparation of hydrogen peroxide from its elements41US 4,347,232 AFMC Corporation · 1982
- Electrocatalytic process for carbon dioxide conversion36US 9,555,367 B2Dioxide Materials, Inc. · 2017
- Water-splitting using photocatalytic porphyrin-nanotube composite devices35US 7,338,590 B1Sandia Corporation · 2008
- Electrocatalysts for carbon dioxide conversion31US 9,012,345 B2Dioxide Materials, Inc. · 2015