C09B 62/4422
The heterocyclic system being a pyrimidine ring
Official title: {the heterocyclic system being a pyrimidine ring}
C09B62/4422 (The heterocyclic system being a pyrimidine ring) appears on 15 US grants and 3 published applications in this corpus.
Search patents in C09B- Granted patents
- 15
- Published applications
- 3
- Assignees
- 8
- Inventors
- 33
- Latest grant
- 12 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 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 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 3 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Reactive leuco compounds and compositions comprising the same12 Apr 2022US 11,299,634 B2Milliken & Company
- Leuco polymers as bluing agents in laundry care compositions16 Feb 2021US 10,920,083 B2Milliken & Company
- Fluorescent reactive dyes, process for the production thereof and their use12 Mar 2019US 10,227,491 B2DyStar Coulors Distribution GmbH
- Water-soluble fiber-reactive dyes, processes for their preparation, and their use9 May 2000US 6,060,591 ADy Star Textilfarben GmbH & Co. Deutschland KG
- Reactive dyestuffs having reactive fluorine-containing pyrimidyl radicals7 Jan 1997US 5,591,834 ABayer Aktiengesellschaft
- Fluorecent reactive dyes, process for the production thereof and their use12 Jul 2018US 2018/0194943 A1DyStar Colours Distribution GmbH
- Reactive leuco compounds and compositions comprising the same3 May 2018US 2018/0118942 A1Milliken & Company
- Leuco polymers as bluing agents in laundry care compositions3 May 2018US 2018/0118948 A1Milliken & Company
Most cited
By later US patents
- Fiber-reactive dyes comprising a halopyrimidine for which a vinylsulfonyl or the like moiety is attached via a bridge member35US 4,968,781 ACiba-Geigy Corporation · 1990
- Fiber-reactive, heavy metal-containing formazane dyestuffs16US 4,024,123 A1977
- Bifunctional reactive dyestuffs containing vinylsulphone or alkylsulphone groups and a 2,4 difluoro pyrimidine group9US 5,319,074 ABayer Aktiengesellschaft · 1994
- Dyestuffs containing pyrimidine-carboxylic acid amide radical having fiber-reactive group, processes for their preparation and their use9US 5,399,674 AHoechst Aktiengesellschaft · 1995
- Water-soluble fiber-reactive dyes, processes for their preparation, and their use6US 6,060,591 ADy Star Textilfarben GmbH & Co. Deutschland KG · 2000