C09B 11/245
Phthaleins having both oh and amino substituent on aryl ring
Official title: {Phthaleins having both OH and amino substituent(s) on aryl ring}
C09B11/245 (Phthaleins having both oh and amino substituent on aryl ring) appears on 13 US grants and 15 published applications in this corpus.
Search patents in C09B- Granted patents
- 13
- Published applications
- 15
- Assignees
- 19
- Inventors
- 43
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 3 |
| 2020 | 1 | 2 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Single cell selection and isolation21 Jul 2026US 12,687,495 B2Erasmus University Medical Center Rotterdam
- Lithographic printing plate precursor, method for producing lithographic printing plate, and color-developing composition9 May 2023US 11,642,879 B2FUJIFITM Corporation
- Rhodol-based thallium sensors for high-throughput screening of potassium channels6 Dec 2022US 11,519,859 B2Vanderbilt University
- Small-molecule organic dyes4 Jan 2022US 11,214,687 B2UniversitäT Basel
- Fluorescent sensors of peroxynitrite targeted to the endoplasmic reticulum26 May 2020US 10,663,471 B2University of Kansas
- Liposomes displaying a glycan ligand for cd33 and their use in the treatment of alzheimer's disease18 Jul 2024US 2024/0238442 A1The Governors of the University of Alberta
- N-(2-aminoethyl)morpholine-based rna analogs, method for the preparation and use thereof6 Jun 2024US 2024/0182512 A1Uniwersytet Warszawski
- Single cell selection and isolation24 Mar 2022US 2022/0090007 A1Erasmus University Medical Center Rotterdam
- Small-molecule organic dyes13 Aug 2020US 2020/0255667 A1UniversitäT Basel
- Lithographic printing plate precursor, method for producing lithographic printing plate, and color-developing composition14 May 2020US 2020/0147951 A1FUJIFILM Corporation
Most cited
By later US patents
- Xanthene dyes22US 7,704,284 B2Ciba Corporation · 2010
- Fluorescent probe9US 7,524,974 B2Daiichi Pure Chemicals Co., Ltd. · 2009
- Process for preparing benzophenone derivatives7US 4,323,700 AKanzaki Paper Manufacturing Co., Ltd. · 1982
- Fluorescent probe for the quantitation of zinc7US 6,903,226 B2Daiichi Pure Chemicals Co., Ltd. · 2005
- Fluorescent probe for zinc2US 7,074,823 B2Daiichi Pure Chemical Co., Ltd. · 2006