C12Q 2326/20
Ortho-phenylenediamine
Official title: Ortho-Phenylenediamine
C12Q2326/20 (Ortho-phenylenediamine) appears on 7 US grants and 1 published applications in this corpus.
Search patents in C12Q- Granted patents
- 7
- Published applications
- 1
- Assignees
- 6
- Inventors
- 13
- Latest grant
- 24 Apr 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for measuring polyamines in erythrocytes, diagnostic method and kit for measuring polyamines in erythrocytes24 Apr 2007US 7,208,284 B2National University Corporation Nagoya University
- Immunoassay7 Jul 1998US 5,776,703 A
- High sensitivity detection of peroxidase activity7 Jan 1992US 5,079,150 ABecton, Dickinson and Company
- Fluorescent detection method based on enzyme activated conversion of a fluorophore precursor substrate21 May 1991US 5,017,475 AMicrobiological Associates, Inc.
- Measurement method of peroxidase activity8 Aug 1989US 4,855,229 AOlympus Optical Co., Ltd.
Most cited
By later US patents
- Detection method for occult blood26US 4,683,197 AHoffmann-La Roche Inc. · 1987
- Fluorescent detection method based on enzyme activated conversion of a fluorophore precursor substrate4US 5,017,475 AMicrobiological Associates, Inc. · 1991
- Immunoassay3US 5,776,703 A1998
- Process for the determination of peroxidase2US 4,752,570 ABoehringer Mannheim GmbH · 1988
- High sensitivity detection of peroxidase activity2US 5,079,150 ABecton, Dickinson and Company · 1992