C01C 1/185
Preparation
Official title: {Preparation}
C01C1/185 (Preparation) appears on 64 US grants and 54 published applications in this corpus.
Search patents in C01C- Granted patents
- 64
- Published applications
- 54
- Assignees
- 53
- Inventors
- 149
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 3 | 2 |
| 2015 | 2 | 2 |
| 2016 | 2 | 1 |
| 2017 | 0 | 4 |
| 2018 | 1 | 4 |
| 2019 | 4 | 3 |
| 2020 | 3 | 2 |
| 2021 | 4 | 4 |
| 2022 | 0 | 2 |
| 2023 | 3 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 8 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and process for the production of UAN19 May 2026US 12,630,435 B2Stamicarbon B. V.
- Ammonium nitrate reactor with static mixer3 Feb 2026US 12,539,501 B2Stamicarbon B. V.
- Integrated production of urea for Diesel Exhaust Fluid and urea ammonium nitrate28 Jan 2025US 12,209,061 B2Stamicarbon B. V.
- Urea production process and plant with parallel MP units13 Aug 2024US 12,060,313 B2Stamicarbon B. V.
- Method for preparing cathode active material precursor for secondary battery, and preparation apparatus using same28 Nov 2023US 11,827,524 B2Posco Future M Co., Ltd.
- System for producing technical grade ammonium nitrate and method of producing thereof17 Sep 2026US 2026/0274696 A1Yara International Asa
- Apparatus for production of ammonium nitrate from nitric acid and ammonia13 Aug 2026US 2026/0233190 A1thyssenkrupp AG
- Neutralisation reactor and method of operating thereof23 Jul 2026US 2026/0209055 A1Yara International Asa
- Method for producing ammonium nitrate using nitrogen dioxide in cement exhaust gas30 Apr 2026US 2026/0116768 A1Sumitomo Osaka Cement Co., Ltd.
- System and process for the production of uan5 Feb 2026US 2026/0035256 A1Stamicarbon B. V.
Most cited
By later US patents
- Process for manufacturing ammonium salts33US 6,117,406 AKaltenbach-Thuring S.A. · 2000
- Flue gas desulfurization process and apparatus for removing nitrogen oxides26US 6,759,022 B2Marsulex Environmental Technologies Corporation · 2004
- Electron beam flue gas scrubbing treatment19US 5,695,616 AResearch-Cotrella Companies, Inc. · 1997
- Manufacturing and using nitrogen fertilizer solutions on a farm11US 5,192,355 AKamterter Products, LLC · 1993
- Systems and methods of producing chemical compounds10US 8,721,980 B2Altmerge, LLC · 2014