Inventor
DONALD DENNIS S
US8 patents
Patents
8 patentsUS3948895AApr 6, 1976
Synthesis of 3,5-diaminopyrazinoic acid from 3,5-diamino-2,6-dicyanopyrazine and intermediates
DU PONT45 citations90
US5384232AJan 24, 1995
Process for rapid access development of silver halide films using pyridinium as development accelerators
DU PONT35 citations88
US4343893AAug 10, 1982
Masked development/image modifier compounds of silver photographic systems
DU PONT10 citations72
US4168981ASep 25, 1979
Bis(substituted amino)sulfides as reversible inhibitor sources for photopolymerization
DU PONT13 citations71
US5145610ASep 8, 1992
Organic optical elements and nonlinear optical devices
DU PONT7 citations68
US5312565AMay 17, 1994
Nonlinear optical materials
DU PONT4 citations60
US4501896AFeb 26, 1985
Phenylmercaptotetrazolo- and nitroindazolo masked development/image modifiers
DU PONT0 citations51
US4576894AMar 18, 1986
Tanning development in low silver photoimaging using polymeric couplers
DU PONT1 citations50