C01C 1/10
Separation of ammonia from ammonia liquors
Official title: Separation of ammonia from ammonia liquors, e.g. gas liquors {(as part of the ammonia synthesis process C01C1/04)}
C01C1/10 (Separation of ammonia from ammonia liquors) appears on 73 US grants and 48 published applications in this corpus.
Search patents in C01C- Granted patents
- 73
- Published applications
- 48
- Assignees
- 68
- Inventors
- 179
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 3 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 1 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 2 |
| 2016 | 2 | 3 |
| 2017 | 2 | 2 |
| 2018 | 4 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 5 |
| 2022 | 5 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 8 |
| 2025 | 3 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for removing ammonia from an ammonia-containing effluent, and method for the same20 Jan 2026US 12,528,716 B2Nijhuis Water Technology B.V.
- Reciprocating freeze concentration for urine-based fertilizer production15 Jul 2025US 12,358,846 B2The Regents of the University of Michigan
- Systems and methods for ammonia purification27 May 2025US 12,312,248 B2Bechtel Energy Technologies & Solutions, Inc.
- System and method for recovering ammonia from an ammonia-containing liquid18 Mar 2025US 12,252,428 B2Process Limited
- Hydrogen gas production device15 Oct 2024US 12,116,276 B2
- Process for the production of high-purity melamine from the pyrolysis of urea, with optimization of the deammoniation step of the mother liquors8 Oct 2026US 2026/0308134 A1Eurotecnica Contractors & Engineers S.p.A.
- Method for recovering ammonia16 Jul 2026US 2026/0200747 A1Posco
- Systems and Methods for Ammonia Purification7 Aug 2025US 2025/0250179 A1Bechtel Energy Technologies & Solutions, Inc.
- Systems and Methods for Ammonia Purification3 Apr 2025US 2025/0109029 A1Bechtel Energy Technologies & Solutions, Inc.
- Recovering ammonia for example from composting5 Dec 2024US 2024/0399303 A1ComFerm Holding ApS
Most cited
By later US patents
- Process for removal of silica from geothermal brine72US 4,016,075 ASouthern Pacific Land Co. · 1977
- Waste-water process65US 4,002,565 AChevron Research Company · 1977
- Waste water processing44US 3,966,633 ACogas Development Company · 1976
- Method and apparatus for ammonia-nitrogen removal by vacuum desorption32US 4,093,544 ASterling Drug Inc. · 1978
- Process for removing ammonia and acid gases from process streams32US 4,594,131 AUnited States Steel Corporation · 1986