C23F 11/144
Aminocarboxylic acids
Official title: {Aminocarboxylic acids}
C23F11/144 (Aminocarboxylic acids) appears on 53 US grants and 52 published applications in this corpus.
Search patents in C23F- Granted patents
- 53
- Published applications
- 52
- Assignees
- 39
- Inventors
- 119
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 3 |
| 2015 | 3 | 7 |
| 2016 | 3 | 1 |
| 2017 | 2 | 4 |
| 2018 | 2 | 5 |
| 2019 | 4 | 3 |
| 2020 | 3 | 5 |
| 2021 | 5 | 1 |
| 2022 | 3 | 3 |
| 2023 | 4 | 5 |
| 2024 | 2 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and compositions to reduce azoles and AOX corrosion inhibitors9 Jun 2026US 12,649,675 B2Bl Technologies, Inc.
- Supramolecular surfactants with detergent-dispersant and corrosion inhibitor properties19 Aug 2025US 12,391,895 B2Instituto Mexicano Del Petroleo
- Treatment liquid and treatment method15 Apr 2025US 12,276,915 B2FUJIFILM Corporation
- Identification and characterization of novel corrosion inhibitor molecules26 Nov 2024US 12,152,164 B2Ecolab USA Inc.
- Corrosion inhibition package6 Feb 2024US 11,891,703 B2Dorf Ketal Chemicals Fze
- Compositions for the water side treatment of high heat flux copper molds25 Jun 2026US 2026/0176769 A1Chemtreat, Inc.
- Fluorescent moiety tagged polymers for use in monitoring cleanliness of mold surfaces25 Jun 2026US 2026/0176771 A1Chemtreat, Inc.
- Corrosion inhibitor composition and method for inhibiting corrosion in geothermal well system30 Apr 2026US 2026/0117115 A1Chemtreat, Inc.
- Aluminum corrosion inhibitors for closed loop systems16 Apr 2026US 2026/0103806 A1Chemtreat, Inc.
- Amino acid derivatives and sulfur derivatives as biodegradable corrosion inhibitors12 Jun 2025US 2025/0188618 A1ChampionX LLC
Most cited
By later US patents
- Pure amino acid chelates89US 4,599,152 AAlbion Laboratories, Inc. · 1986
- Process for corrosion inhibition of ferrous metals35US 4,971,724 AMonsanto Company · 1990
- Trihydroxybenzene boiler corrosion inhibitor compositions and method26US 4,895,703 ACalgon Corporation · 1990
- Corrosion inhibitors24US 5,183,590 AW. R. Grace & Co.-Conn. · 1993
- Method of retarding corrosion of metal surfaces in contact with boiler water systems which corrosion is caused by dissolved oxygen18US 5,091,108 ANalco Chemical Company · 1992