C09B 68/46
Aromatic cyclic groups
Official title: {Aromatic cyclic groups}
C09B68/46 (Aromatic cyclic groups) appears on 56 US grants and 36 published applications in this corpus.
Search patents in C09B- Granted patents
- 56
- Published applications
- 36
- Assignees
- 32
- Inventors
- 85
- Latest grant
- 29 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 6 |
| 2008 | 0 | 4 |
| 2009 | 3 | 1 |
| 2010 | 2 | 1 |
| 2011 | 3 | 3 |
| 2012 | 3 | 3 |
| 2013 | 3 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 2 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 3 | 2 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Manipulating hydrophilicity of conventional dye molecules for tracer applications29 Apr 2025US 12,286,574 B2Saudi Arabian Oil Company
- Pyridine and pyrimidine substituted triazine UV absorbers18 Feb 2025US 12,227,898 B2Archroma (Switzerland) GmbH
- Pyridine and pyrimidine substituted triazine UV absorbers12 Dec 2023US 11,840,804 B2Huntsman Textile Effects (Switzerland) GmbH
- Manufacturing process for dark-color polymer composite films26 Sep 2023US 11,767,412 B2Global Graphene Group, Inc.
- Manipulating hydrophilicity of conventional dye molecules for water tracer applications15 Aug 2023US 11,725,139 B2Saudi Arabian Oil Company
- New Pyridine And Pyrimidine Substituted Triazine UV Absorbers28 Mar 2024US 2024/0102236 A1Huntsman Advanced Materials (Switzerland) GmbH
- Manipulating hydrophilicity of conventional dye molecules for tracer applications27 Jul 2023US 2023/0235218 A1Saudi Arabian Oil Company
- Manipulating hydrophilicity of conventional dye molecules for water tracer applications15 Jun 2023US 2023/0183564 A1Saudi Arabian Oil Company
- Manufacturing process for dark-color polymer composite films3 Mar 2022US 2022/0064406 A1Global Graphene Group, Inc.
- New pyridine and pyrimidine substituted triazine UV absorbers4 Nov 2021US 2021/0340705 A1Huntsman Advanced Materials (Switzerland) GmbH
Most cited
By later US patents
- Ink compositions containing modified pigment particles217US 5,281,261 AXerox Corporation · 1994
- Fluorescent carbamate-modified phthalocyanine pigments46US 5,811,543 ACiba Speciality Chemicals Corporation · 1998
- Compositions for making structured color images and application thereof40US 5,879,855 ACiba Specialty Chemicals Corporation · 1999
- Mixed carbonate ester derivatives of quinophthalone dyes and their preparation37US 5,243,052 APolaroid Corporation · 1993
- Ink set, and recording method and recorded material using the same36US 7,985,784 B2Seiko Epson Corporation · 2011