C07C 233/89
Carboxylic acid amides: having nitrogen atoms of carboxamide groups quaternised
Official title: having nitrogen atoms of carboxamide groups quaternised
C07C233/89 (Carboxylic acid amides: having nitrogen atoms of carboxamide groups quaternised) appears on 16 US grants and 5 published applications in this corpus.
Search patents in C07C- Granted patents
- 16
- Published applications
- 5
- Assignees
- 14
- Inventors
- 31
- Latest grant
- 22 Oct 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 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 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Synthesis of non-cyclic amide and thioamide based ionic liquids22 Oct 2019US 10,450,264 B2Uop LLC
- Gasoline fuel composition for improved performance in fuel injected engines23 Dec 2014US 8,915,977 B2Afton Chemical Corporation
- Amidium-based ionic liquids for carbon dioxide absorption24 Dec 2013US 8,613,865 B2Hyundai Motor Company
- Amidium-based ionic liquids for carbon dioxide absorption9 Oct 2012US 8,282,710 B2Hyundai Motor Company
- Quaternary amine surfactant and methods of using same in isolation of RNA16 Nov 1999US 5,985,572 AQiagen GmbH
- Multi-ionic surfactants6 Feb 2025US 2025/0042844 A1Ecolab USA Inc.
- Synthesis of non-cyclic amide and thioamide based ionic liquids10 May 2018US 2018/0127352 A1Uop LLC
- Gasoline fuel composition for improved performance in fuel injected engines30 Oct 2014US 2014/0318486 A1Afton Chemical Corporation
- Amidium-based ionic liquids for carbon dioxide absorption10 Jan 2013US 2013/0012699 A1Hyundai Motor Company
- Amidium-based ionic liquids for carbon dioxide absorption9 Sep 2010US 2010/0224063 A1Hyundai Motor Company
Most cited
By later US patents
- Quaternary amine surfactants and methods of using same in isolation of RNA88US 5,728,822 AQiagen GmbH · 1998
- Quaternary amine surfactant and methods of using same in isolation of RNA39US 5,985,572 AQiagen GmbH · 1999
- Esters of acyl-carnitines, process for preparing same and pharmaceutical compositions containing such esters24US 4,439,438 A1984
- Method for the preparation of a highly concentrated, flowable and pumpable betaine solution19US 4,832,871 ATh. Goldschmidt AG · 1989
- Amides of acyl-carnitines, process for preparing same and pharmaceutical compositions containing such amides15US 4,443,475 A1984