C07C 273/1863
From urea
Official title: {from urea}
C07C273/1863 (From urea) appears on 49 US grants and 26 published applications in this corpus.
Search patents in C07C- Granted patents
- 49
- Published applications
- 26
- Assignees
- 33
- Inventors
- 138
- Latest grant
- 11 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 3 |
| 2014 | 1 | 3 |
| 2015 | 3 | 3 |
| 2016 | 4 | 4 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 2 | 0 |
| 2023 | 1 | 1 |
| 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
- Process for preparing 5-(fluoro-4-imino-3-methyl)-1-tosyl-3,4 dihydropyrimidine-(1H)-one and derivatives of the compound11 Nov 2025US 12,466,796 B2Adama Makhteshim Ltd.
- Process for preparing diisocyanates based on lysine29 Aug 2023US 11,739,055 B2Evonik Operations GmbH
- Urea condensation compositions and methods of making the same11 Oct 2022US 11,465,945 B2Sabic Global Technologies B.V.
- Method for producing carbamate and method for producing isocyanate7 Jun 2022US 11,352,319 B2Asahi Kasei Kabushiki Kaisha
- Process to prepare higher ethylene amines and ethylene amine derivatives24 Nov 2020US 10,844,001 B2Nouryon Chemicals International B. V.
- Process for preparing 5-(fluoro-4-imino-3-methyl)-1-tosyl-3,4 dihydropyrimidine-(1h)-one and derivatives of the compound2 Apr 2026US 2026/0092041 A1Adama Makhteshim Ltd.
- Process for preparing 5-(fluoro-4-imino-3-methyl)-1-tosyl-3,4 dihydropyrimidine-(1h)-one and derivatives of the compound11 May 2023US 2023/0143040 A1Adama Makhteshim Ltd.
- Process for preparing diisocyanates based on lysine30 Dec 2021US 2021/0403417 A1Evonik Operations GmbH
- Method for producing carbamate and method for producing isocyanate17 Jun 2021US 2021/0179548 A1Asahi Kasei Kabushiki Kaisha
- Urea condensation compositions and methods of making the same13 Feb 2020US 2020/0048154 A1Sabic Global Technologies B.V.
Most cited
By later US patents
- Production process of N-substituted amide compounds141US 4,835,312 AMitsui Chemicals, Inc. · 1989
- Process for the production of polyisocyanates with a biuret structure27US 3,976,622 ABayer Aktiengesellschaft · 1976
- Process for manufacture of isobutylidene diurea25US 4,062,890 ASwift Agricultural Chemicals Corporation · 1977
- Manufacture of granular isobutylidenediurea22US 3,962,329 ABASF SE · 1976
- Process for the production of triaryl methane compounds20US 4,533,499 ACiba-Geigy Corporation · 1985