P

Inventor

BERGNA HORACIO E

US16 patents

Patents

16 patents
US5011804AApr 30, 1991

Ceramic dielectric compositions and method for improving sinterability

DU PONT55 citations96
US4677084AJun 30, 1987

Attrition resistant catalysts, catalyst precursors and catalyst supports and process for preparing same

DU PONT74 citations96
US4477492AOct 16, 1984

Process for preparing superficially porous supports for chromatography and catalysts

DU PONT111 citations96
US4272409AJun 9, 1981

Aluminosilicate sols and powders

DU PONT63 citations96
US4257874AMar 24, 1981

Petroleum refinery processes using catalyst of aluminosilicate sols and powders

DU PONT46 citations96
US4217240AAug 12, 1980

Stable aluminosilicate aquasols having uniform size particles and their preparation

DU PONT74 citations96
US4162238AJul 24, 1979

Foundry mold or core compositions and method

DU PONT82 citations96
US5082810AJan 21, 1992

Ceramic dielectric composition and method for preparation

DU PONT31 citations92
US4752596AJun 21, 1988

Modified 8-ring zeolites as catalysts

DU PONT38 citations92
US4316744AFeb 23, 1982

High ratio silicate foundry sand binders

DU PONT51 citations92
US4131542ADec 26, 1978

Spray dried silica for chromatography

DU PONT49 citations92
US4683334AJul 28, 1987

Modified 8-ring zeolites as catalysts for conversion of methanol and ammonia to dimethylamine

DU PONT40 citations89
US4849539AJul 18, 1989

Method of making acrylonitrile

DU PONT17 citations82
US4769477ASep 6, 1988

Method of making maleic anhydride

DU PONT24 citations82
US4410405AOct 18, 1983

Silica sol process

DU PONT9 citations73
US5569785AOct 29, 1996

Attrition resistant zeolite catalysts for production of methylamines in fluidized bed reactors

DU PONT10 citations72