C07C 251/20
Having carbon atoms of imino groups being part of rings other than
Official title: having carbon atoms of imino groups being part of rings other than six-membered aromatic rings
C07C251/20 (Having carbon atoms of imino groups being part of rings other than) appears on 94 US grants and 87 published applications in this corpus.
Search patents in C07C- Granted patents
- 94
- Published applications
- 87
- Assignees
- 82
- Inventors
- 270
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 6 |
| 2003 | 5 | 4 |
| 2004 | 2 | 4 |
| 2005 | 2 | 4 |
| 2006 | 2 | 3 |
| 2007 | 0 | 5 |
| 2008 | 2 | 4 |
| 2009 | 1 | 3 |
| 2010 | 3 | 3 |
| 2011 | 6 | 4 |
| 2012 | 1 | 0 |
| 2013 | 2 | 5 |
| 2014 | 1 | 5 |
| 2015 | 4 | 2 |
| 2016 | 4 | 2 |
| 2017 | 1 | 5 |
| 2018 | 4 | 2 |
| 2019 | 5 | 1 |
| 2020 | 1 | 0 |
| 2021 | 0 | 2 |
| 2022 | 0 | 3 |
| 2023 | 0 | 7 |
| 2024 | 0 | 5 |
| 2025 | 2 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Intermediates1 Sep 2026US 12,723,019 B2Syngenta Crop Protection AG
- Composition for forming organic film, patterning process, and compound24 Mar 2026US 12,584,023 B2Shin-Etsu Chemical Co., Ltd.
- Compounds, compositions, methods of using, and methods for preparing compounds5 Aug 2025US 12,377,069 B2The Institute for Stem Cell Biology and Regenerative Medicine (Instem)
- Red-shifted fluorophores1 Jul 2025US 12,344,594 B2Howard Hughes Medical Institute
- Compound and intermediate thereof5 May 2020US 10,640,456 B2Dai Nippon Printing Co.Ltd.
- Compounds, compositions, methods of using, and methods for preparing compounds2 Jul 2026US 2026/0183260 A1The Institute for Stem Cell Biology and Regenerative Medicine (Instem)
- Azetidine-substituted fluorescent compounds18 Jun 2026US 2026/0167612 A1
- Amine-substituted fluorescent compounds15 Jan 2026US 2026/0015335 A1
- Fluorinated fluorescent compounds1 Jan 2026US 2026/0001857 A1
- Stabilised fluorophores, compositions, methods of preparation, conjugates thereof, and methods of use11 Dec 2025US 2025/0377301 A1
Most cited
By later US patents
- Polymerization processes for olefins51US 5,852,145 AE. I. Du Pont de Nemours and Company · 1998
- Catalysts containing N-pyrrolyl substituted nitrogen donors51US 6,545,108 B1Eastman Chemical Company · 2003
- Fullerene derivatives32US 6,380,434 B12002
- Catalytic enantioselective addition of hydrocarbon equivalents to alpha, beta-unsaturated carbonyl compounds28US 4,962,214 AMassachusettes Institute of Technology · 1990
- Tricyclic polyhydroxylic tyrosine kinase inhibitors22US 6,194,439 B1Pfizer Inc. · 2001