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:
Aug. 31, 1999
Filed:
Nov. 13, 1997
Applicant:
Inventors:
Frank F Molock, Orange Park, FL (US);
James D Ford, Orange Park, FL (US);
Gregory A Hill, Ponte Vedra Beach, FL (US);
Joe M Wood, Jacksonville, FL (US);
Assignee:
Johnson & Johnson Vision Products, Inc., Jacksonville, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06P / ; D06P / ;
U.S. Cl.
CPC ...
8506 ; 8543 ; 8549 ; 8566 ; 8587 ; 8DIG / ;
Abstract
A highly purified monomer-dye unit is disclosed. A method for producing a highly purified monomer-dye unit is also disclosed. A hydrophilic monomer is reacted with a halotriazine or vinyl sulfone dye in the presence of a base under conditions that yield highly pure monomer-dye units.