C10J 2300/1668
To urea
Official title: to urea; to ammonia
C10J2300/1668 (To urea) appears on 53 US grants and 58 published applications in this corpus.
Search patents in C10J- Granted patents
- 53
- Published applications
- 58
- Assignees
- 46
- Inventors
- 135
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 2 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 4 |
| 2008 | 0 | 6 |
| 2009 | 2 | 6 |
| 2010 | 7 | 5 |
| 2011 | 3 | 7 |
| 2012 | 2 | 1 |
| 2013 | 2 | 4 |
| 2014 | 3 | 1 |
| 2015 | 1 | 4 |
| 2016 | 4 | 1 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 0 | 1 |
| 2025 | 3 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Processes and systems for converting a hydrocarbon-containing feed7 Jul 2026US 12,674,106 B2ExxonMobil Chemical Patents Inc.
- Gasification process employing acid gas recycle23 Sep 2025US 12,421,465 B2Haldor TopsøE A/S
- Production of ammonia, methanol, and synthesis products from one or more gasification products10 Jun 2025US 12,325,634 B2Fluor Technologies Corporation
- Modular artificial intelligence-driven plasma gasification process for resource recovery20 May 2025US 12,305,131 B1Oceanit Laboratories, Inc.
- Gasification process5 Dec 2023US 11,834,614 B2Velocys Technologies Limited
- Enhanced gasification system and method18 Jun 2026US 2026/0167880 A1Aether Fuels Pte. Ltd.
- Biomass gasification and carbon capture coupled system and process4 Dec 2025US 2025/0368908 A1Yingkou Institute of Technology
- Production of ammonia, methanol, and synthesis products from one or more gasification products21 Aug 2025US 2025/0263294 A1Fluor Technologies Corporation
- Methods and systems for efficiently and cleanly manufacturing ammonia, ammonium sulfate, nitric acid, ammonium nitrate, or combinations thereof from coal and petcoke products9 May 2024US 2024/0150189 A1Decarbtek Global Corp.
- Gasification process7 Dec 2023US 2023/0392090 A1Velocys Technologies Limited
Most cited
By later US patents
- Process for producing methanol292US 4,277,416 AAminoil, USA, Inc. · 1981
- Zero emission gasification, power generation, carbon oxides management and metallurgical reduction processes, apparatus, systems, and integration thereof117US 7,674,443 B12010
- Hybrid bio-thermal gasification71US 4,289,625 AInstitute of Gas Technology · 1981
- Heat integration and condensate treatment in a shift feed gas saturator71US 7,879,119 B2Kellogg Brown & Root LLC · 2011
- Apparatus for storing solar energy in synthetic fuels56US 4,455,153 A1984