The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 01, 2002
Filed:
Feb. 03, 1997
Applicant:
Inventors:
Peter Gregory, Bolton, GB;
Stephen James Reynolds, Manchester, GB;
Assignee:
Avecta Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07F 1/12 ; C07F 3/02 ; C07F 1/04 ;
U.S. Cl.
CPC ...
C07D / ; C07F 1/12 ; C07F 3/02 ; C07F 1/04 ;
Abstract
Phthalocyanine compounds substituted by from 1 to 8 substituents of formula (—O—R—O—) wherein R is a 1,2-arylene group are provided. Preferably, the phthalocyanine compounds are substituted by catechol. Additional substituents which may be present include hydrocarlyloxy, hydrocarbylthio, halogen and sulphonic acid or a salt thereof.
Gregory, Peter. (2002). Phthalocyanines (U.S. Patent No. 6335442). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6335442
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile