C01B 7/055
Preparation of hydrogen chloride from ammonium chloride
Official title: {Preparation of hydrogen chloride from ammonium chloride}
C01B7/055 (Preparation of hydrogen chloride from ammonium chloride) appears on 5 US grants and 5 published applications in this corpus.
Search patents in C01B- Granted patents
- 5
- Published applications
- 5
- Assignees
- 6
- Inventors
- 23
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for preparing hydrogen chloride and ammonia gas by using ammonium chloride16 Dec 2025US 12,497,293 B2Yuanchu Technology (Beijing) Co., Ltd.
- Method for the production of iron oxide pigment or pigment intermediate and hydrochloric acid15 Nov 2022US 11,498,836 B1L3 Développement de procédés Inc.
- Method for the recovery of mineral acids from saline solutions18 Jun 2013US 8,466,320 B2BASF SE
- Method for preparing ammonia and hydrogen chloride from ammonium chloride15 Dec 1981US 4,305,917 AChemische Werke Huls Aktiengesellschaft
- Process for producing hydrogen chloride and ammonia6 Oct 1981US 4,293,532 ACentral Glass Company, Limited
- System and method for converting carbon dioxide in a gas stream to commercially desirable chemical products6 Aug 2026US 2026/0225031 A1Rushnu Inc
- Method and system for preparing hydrogen chloride and ammonia gas by using ammonium chloride27 Jan 2022US 2022/0024762 A1Yuanchu Technology (Beijing) Co., Ltd.
- Method for synthesizing ammonia11 Oct 2012US 2012/0258033 A1
- Method for Sequestering Carbon Dioxide17 Feb 2011US 2011/0038774 A1
- Method for the recovery of mineral acids from saline solutions29 Jul 2010US 2010/0189623 A1BASF SE
Most cited
By later US patents