Patents by Inventor William P. Leary, Jr.

William P. Leary, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Azo dyes having utility for ink jet printers
    Patent number: 5616696
    Abstract: A group of compounds comprising the reaction product of a hydroxy naphthylamine sulfonic acid with a diazotized compound comprising, an aromatic azo substituted Cleves Acid such that the diazotized compound is coupled with the hydroxy naphthylamine sulfonic acid ortho to the amine group. More particularly the compounds of the invention comprise a compound having the formula: ##STR1## wherein R.sub.1 is an aromatic azo radical, R.sub.2 is hydrogen or an aromatic azo group and R.sub.3 is amino, substituted amino or an aromatic azo group. The invention further includes inks made from such compositions and methods for using such inks in ink jet printers.
    Type: Grant
    Filed: September 14, 1995
    Date of Patent: April 1, 1997
    Assignee: Tricon Colors Incorporated
    Inventor: William P. Leary, Jr.