C07C 227/02
Formation of carboxyl groups in compounds containing amino groups
Official title: Formation of carboxyl groups in compounds containing amino groups, e.g. by oxidation of amino alcohols
C07C227/02 (Formation of carboxyl groups in compounds containing amino groups) appears on 100 US grants and 92 published applications in this corpus.
Search patents in C07C- Granted patents
- 100
- Published applications
- 92
- Assignees
- 80
- Inventors
- 334
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 4 |
| 2002 | 3 | 8 |
| 2003 | 6 | 6 |
| 2004 | 2 | 4 |
| 2005 | 1 | 5 |
| 2006 | 4 | 1 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 3 | 0 |
| 2011 | 1 | 4 |
| 2012 | 2 | 6 |
| 2013 | 4 | 5 |
| 2014 | 6 | 8 |
| 2015 | 3 | 6 |
| 2016 | 7 | 7 |
| 2017 | 6 | 6 |
| 2018 | 1 | 2 |
| 2019 | 7 | 0 |
| 2020 | 1 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 2 |
| 2023 | 1 | 1 |
| 2024 | 0 | 4 |
| 2025 | 1 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Process to prepare amino carboxylic acid salts51US 5,292,936 AMonsanto Company · 1994
- Process for preparing carboxylic acid salts and methods for making such catalysts and catalysts useful in such process49US 5,627,125 AMonsanto Company · 1997
- Process to prepare amino carboxylic acid salts42US 5,367,112 AMonsanto Company · 1994
- Method for manufacture of amino-carboxylic acid salts38US 4,782,183 ANippon Shokubai Kagaku Kogyo Co., Ltd. · 1988
- Carboxybetaine-functionalized diols and zwitterionic polyurethane hydrogels derived therefrom35US 9,139,684 B2The United States of America as represented by the Secretary of the Navy · 2015