C09B 47/06
Preparation from carboxylic acids or derivatives thereof
Official title: Preparation from carboxylic acids or derivatives thereof {, e.g. anhydrides, amides, mononitriles, phthalimide, o-cyanobenzamide}
C09B47/06 (Preparation from carboxylic acids or derivatives thereof) appears on 347 US grants and 243 published applications in this corpus.
Search patents in C09B- Granted patents
- 347
- Published applications
- 243
- Assignees
- 135
- Inventors
- 775
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 9 | 0 |
| 1994 | 8 | 0 |
| 1995 | 15 | 0 |
| 1996 | 11 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 4 | 1 |
| 2002 | 8 | 0 |
| 2003 | 3 | 4 |
| 2004 | 0 | 3 |
| 2005 | 0 | 5 |
| 2006 | 5 | 16 |
| 2007 | 8 | 14 |
| 2008 | 5 | 27 |
| 2009 | 22 | 28 |
| 2010 | 27 | 16 |
| 2011 | 16 | 26 |
| 2012 | 18 | 16 |
| 2013 | 8 | 11 |
| 2014 | 19 | 12 |
| 2015 | 8 | 13 |
| 2016 | 7 | 8 |
| 2017 | 5 | 12 |
| 2018 | 5 | 8 |
| 2019 | 5 | 3 |
| 2020 | 8 | 4 |
| 2021 | 1 | 3 |
| 2022 | 2 | 6 |
| 2023 | 3 | 4 |
| 2024 | 1 | 3 |
| 2025 | 2 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C09B 47/067From phthalodinitriles naphthalenedinitriles, aromatic dinitriles prepared in situ, hydrogenated phthalodinitrile228
- C09B 47/073Preparation from isoindolenines59
- C09B 47/065Having -cooh or -so3h radicals or derivatives thereof, directly linked to the40
- C09B 47/063Having oxygen or sulfur atom linked directly to the skeleton35
- C09B 47/061Having halogen atoms linked directly to the pc skeleton15
- C09B 47/062Having alkyl radicals linked directly to the pc skeleton15
- C09B 47/064Having nitrogen atom directly linked to the skeleton8
Recent patents
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Most cited
By later US patents
- Phthalocyanine compositions112US 6,472,523 B1Xerox Corporation · 2002
- Processes for the preparation of titanium phthalocyanines85US 5,166,339 AXerox Corporation · 1992
- Photoconductive phthalocyanine pigments, electrophotographic elements containing them and a method of use70US 4,701,396 AEastman Kodak Company · 1987
- Titanyl phthalocyanine Type I processes65US 5,189,155 AXerox Corporation · 1993
- Fluorescent marker components and fluorescent probes52US 5,403,928 ADiatron Corporation · 1995