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:
May. 16, 1989
Filed:
Feb. 27, 1986
Applicant:
Inventors:
John Pease, Los Altos, CA (US);
Thomas L Tarnowski, San Francisco, CA (US);
Donald Berger, San Jose, CA (US);
Chiu C Chang, Sunnyvale, CA (US);
Chun-Hua Chuang, Akron, OH (US);
Assignee:
Syntex (U.S.A.) Inc., Palo Alto, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
2603 / ; 544398 ; 544401 ; 548542 ; 546 94 ;
Abstract
Squaraine dyes and compositions of matter containing such dyes are disclosed. The squaraine dyes have an absorption maximum greater than 600 nanometers and are particulary useful in conjunction with a helium/neon (He/Ne) laser. Some of the squaraine dyes are hydrophilic and are therefore water soluble or water compatible and others of the squaraine dyes are lipophilic.