C01C 1/026
Preparation of ammonia from inorganic compounds
Official title: {Preparation of ammonia from inorganic compounds}
C01C1/026 (Preparation of ammonia from inorganic compounds) appears on 83 US grants and 95 published applications in this corpus.
Search patents in C01C- Granted patents
- 83
- Published applications
- 95
- Assignees
- 98
- Inventors
- 271
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 5 |
| 2009 | 2 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 5 |
| 2013 | 0 | 5 |
| 2014 | 2 | 2 |
| 2015 | 2 | 4 |
| 2016 | 2 | 1 |
| 2017 | 3 | 7 |
| 2018 | 5 | 3 |
| 2019 | 6 | 2 |
| 2020 | 1 | 3 |
| 2021 | 6 | 13 |
| 2022 | 4 | 9 |
| 2023 | 4 | 2 |
| 2024 | 6 | 5 |
| 2025 | 5 | 10 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Solid-gas reaction to generate nitroxyl (HNO) in the gas phase22 Sep 2026US 12,740,999 B2Consejo Nacional De Investgaciones Cientficas Y Tecnicas Conicet
- Alkali hydroxide production from alkali sulfate with halogen or carboxylic acid intermediates5 May 2026US 12,618,162 B2Innovator Energy, LLC
- Method of continuous electrochemical dinitrogen reduction10 Mar 2026US 12,571,112 B2Monash University
- Method and system for preparing hydrogen chloride and ammonia gas by using ammonium chloride16 Dec 2025US 12,497,293 B2Yuanchu Technology (Beijing) Co., Ltd.
- Alkali hydroxide production from alkali sulfate with halogen or carboxylic acid intermediates16 Sep 2025US 12,416,086 B2Innovator Energy, LLC
- Methods, systems, and apparatuses for in-situ production of compounds via subsurface geothermal chemical reactions17 Sep 2026US 2026/0274694 A1Massachusetts Institute of Technology
- Alkali hydroxide production from alkali sulfate with halogen or carboxylic acid intermediates13 Aug 2026US 2026/0234812 A1Innovator Energy, LLC
- System and method for converting carbon dioxide in a gas stream to commercially desirable chemical products6 Aug 2026US 2026/0225031 A1Rushnu Inc
- A method of continuous electrochemical dinitrogen reduction4 Jun 2026US 2026/0152860 A1Monash University
- Method for producing ammonium nitrate using nitrogen dioxide in cement exhaust gas30 Apr 2026US 2026/0116768 A1Sumitomo Osaka Cement Co., Ltd.
Most cited
By later US patents
- Exhaust gas purification system for denoxing exhaust gases from combustion units36US 6,301,879 B1HJS Fahrzeugtechnik GmbH & Co. · 2001
- Methods for the production of ammonia from urea and/or biuret, and uses for NO.sub.x and/or particulate matter removal35US 6,077,491 AEC&C Technologies, Inc. · 2000
- Method using on site generated ammonia to reduce particulates in combustion gas streams33US 6,506,350 B2EC&C Technologies, Inc. · 2003
- Method of carrying out a chemical reaction with the use of a catalyst24US 10,058,848 B2Instytut Elektrotechniki · 2018
- Lithium-porous metal oxide compositions and lithium reagent-porous metal compositions21US 8,197,707 B2Signa Chemistry, Inc. · 2012