C07C 273/1818
From -n=c=o and xnr'r"
Official title: {from -N=C=O and XNR'R"}
C07C273/1818 (From -n=c=o and xnr'r") appears on 99 US grants and 33 published applications in this corpus.
Search patents in C07C- Granted patents
- 99
- Published applications
- 33
- Assignees
- 69
- Inventors
- 261
- Latest grant
- 24 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 2 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 1 | 3 |
| 2022 | 0 | 2 |
| 2023 | 1 | 4 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- One pot synthesis of urea (meth)acrylates24 Jun 2025US 12,338,202 B2Evonik Operations GmbH
- Thixotropic agent for curable compositions4 Mar 2025US 12,240,960 B2Sika Technology AG
- Method for converting monoisocyanates to ureas17 Sep 2024US 12,091,377 B2Dow Global Technologies LLC
- Method for removing monoisocyanates from organic solution27 Aug 2024US 12,071,394 B2Dow Global Technologies LLC
- Polymer with upper critical solution temperature13 Jun 2023US 11,673,858 B2The Boeing Company
- Urea-based ice recrystallization inhibitor compounds and compositions, and uses thereof for cryopreservation28 May 2026US 2026/0146238 A1PanTHERA CryoSolutions Inc.
- Compounds useful in prevention and/or treatment of senescent cell-related pathologies and diseases26 Dec 2024US 2024/0425508 A1
- Polymer with upper critical solution temperature14 Sep 2023US 2023/0286911 A1The Boeing Company
- Scaled-up synthesis of lomustine under control flow conditions22 Jun 2023US 2023/0192601 A1Purdue Research Foundation
- Applications of amide analogs of triterpenes in cures of cancer and other diseases25 May 2023US 2023/0159436 A1Pacific Arrow Limited
Most cited
By later US patents
- Process for the production of polyisocyanates with biuret structures67US 4,837,359 ABayer Aktiengesellschaft · 1989
- 4H-3,1-benzoxazin-4-ones and related compounds and use as enzyme inhibitors48US 4,657,893 ASyntex (U.S.A.) Inc. · 1987
- Thixotropic agent for use in coating compositions47US 4,314,924 AByk-Mallinckrodt Chemische Produkte GmbH · 1982
- Fluoroacrylic monomers and polymers44US 4,778,915 AAtochem · 1988
- Process for preparing 2,4-dihaloquinazolines32US 4,102,885 ABristol-Myers Company · 1978