Inventor
GRAHAM MARVIN JEROME
US3 patents
Patents
3 patentsUS9568643B2Feb 14, 2017
Polyurethane urea-containing compositions and optical articles and methods for preparing them
PPG IND OHIO INC8 citations77
US10012773B2Jul 3, 2018
Methods for preparing optical articles and optical articles prepared therefrom
PPG IND OHIO INC4 citations69
US9891349B2Feb 13, 2018
Optical articles and methods for preparation of same
PPG IND OHIO INC4 citations69