C01C 1/12
Separation of ammonia from gases and vapours
Official title: Separation of ammonia from gases and vapours {(as part of the ammonia synthesis process C01C1/04)}
C01C1/12 (Separation of ammonia from gases and vapours) appears on 89 US grants and 85 published applications in this corpus.
Search patents in C01C- Granted patents
- 89
- Published applications
- 85
- Assignees
- 89
- Inventors
- 264
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 4 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 3 |
| 2013 | 1 | 4 |
| 2014 | 6 | 3 |
| 2015 | 4 | 4 |
| 2016 | 2 | 8 |
| 2017 | 6 | 5 |
| 2018 | 5 | 3 |
| 2019 | 2 | 6 |
| 2020 | 4 | 3 |
| 2021 | 4 | 6 |
| 2022 | 1 | 5 |
| 2023 | 5 | 2 |
| 2024 | 1 | 10 |
| 2025 | 5 | 6 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for ammonia recovery, acid gas separation, or combination thereof7 Jul 2026US 12,673,876 B2Innovator Energy, LLC
- Ammonia capture and recycle in an ammonia cracker17 Feb 2026US 12,552,678 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Gas turbine plant with ammonia decomposition system30 Dec 2025US 12,510,022 B2Doosan Enerbility Co., Ltd.
- Ammonia stripping device, and resource recovery type high concentration wastewater treatment system using the same5 Aug 2025US 12,378,137 B2Korea Conformity Laboratories
- 3D gradient porous structure for phase separation utilizing additive manufacturing methods17 Jun 2025US 12,331,972 B2Mott Corporation
- Method for recovering ammonia16 Jul 2026US 2026/0200747 A1Posco
- Ammonia capture and recycle in an ammonia cracker25 Jun 2026US 2026/0176148 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Method and system for producing hydrogen from ammonia cracking30 Apr 2026US 2026/0116748 A1Topsoe A/S
- Systems and Methods for Purification of Ammonia Using Adsorption Media19 Mar 2026US 2026/0077293 A1Bechtel Energy Technologies & Solutions, Inc.
- 3D Gradient porous structure for Phase Separation Utilizing Additive Manufacturing Methods20 Nov 2025US 2025/0354732 A1Mott Corporation
Most cited
By later US patents
- Process for the treatment of phenol-containing waste water from coal degassing or gasification processes58US 3,972,693 AMetallgesellschaft Aktiengesellschaft · 1976
- Method for treating ammonia-containing gases35US 4,003,978 ASumitomo Chemical Company, Limited · 1977
- Method of recovering ammonia and compounds from offgases contaminated with organic materials, carbon dioxide, and ammonia33US 5,427,759 AHuels Aktiengesellschaft · 1995
- Process for purifying urea-containing waste water and process for preparing melamine26US 4,308,385 AStamicarbon B. V. · 1981
- Utilization of impure steam contaminated with hydrogen sulfide25US 4,123,506 ADeuterium Corporation · 1978