C08G 12/36
Ureas
Official title: Ureas; Thioureas
C08G12/36 (Ureas) appears on 85 US grants and 45 published applications in this corpus.
Search patents in C08G- Granted patents
- 85
- Published applications
- 45
- Assignees
- 56
- Inventors
- 196
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 1 |
| 2003 | 5 | 3 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 0 | 3 |
| 2007 | 3 | 5 |
| 2008 | 3 | 2 |
| 2009 | 1 | 4 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 1 | 4 |
| 2013 | 0 | 4 |
| 2014 | 3 | 1 |
| 2015 | 3 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 3 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blasthole stemming based on formaldehyde resins, system and charging method6 Oct 2026US 12,754,001 B2Oxiquim S.A.
- Fine hollow particles comprising melamine-based resin23 Dec 2025US 12,503,575 B2Kagoshima University
- Blended furnish with improved performance and methods of making and using the same22 Oct 2024US 12,122,943 B2Arclin USA LLC
- Coated polyester films17 Aug 2021US 11,091,581 B2DuPont Teijin Films U.S. Limited Partnership
- Encapsulated perfume compositions28 Jul 2020US 10,722,857 B2Givaudan SA
- Blasthole stemming based on formaldehyde resins, system and charging method20 Nov 2025US 2025/0354790 A1Oxiquim S.A.
- Novel fine hollow particles comprising melamine-based resin12 Sep 2024US 2024/0301171 A1Kagoshima University
- Melamine-based polymers and uses thereof18 Jan 2024US 2024/0018300 A1Bio-Fence Ltd.
- Blended furnish with improved performance and methods of making and using the same22 Jun 2023US 2023/0193092 A1Arclin USA LLC
- Improved amino resin performance with sulfonated lignin27 Apr 2023US 2023/0132358 A2Arclin USA LLC
Most cited
By later US patents
- Preparation method of amino resin particulate having narrow particle size distribution109US 5,049,645 AMitsui Toatsu Chemicals, Inc. · 1991
- Two-component binder for exterior fiberboard87US 4,165,305 AAllied Chemical Corporation · 1979
- Hydrolytically stable urea-formaldehyde resins and process for manufacturing them27US 4,410,685 ABorden, Inc. · 1983
- Wood composites of low formaldehyde emission18US 4,409,293 ABorden, Inc. · 1983
- Method of scavenging formaldehyde using a low mole ratio melamine-urea-formaldehyde resin17US 5,684,118 AGeorgia-Pacific Resins, Inc. · 1997