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Inventor

FREIS RICHARD E

US5 patents
⚠️ This page may combine multiple inventors who share the name “FREIS RICHARD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DIAMOND SHAMROCK CHEM

3 patents
US4599190AJul 8, 1986

Composition for drinking secondary fibers

DIAMOND SHAMROCK CHEM26 citations91
US4643800AFeb 17, 1987

Methods of decontaminating secondary fiber

DIAMOND SHAMROCK CHEM36 citations88
US4810328AMar 7, 1989

Method of brown stock washing

DIAMOND SHAMROCK CHEM16 citations72

ECONOMICS LAB

2 patents
US4518459AMay 21, 1985

Methods of deinking secondary fibers

ECONOMICS LAB40 citations91
US3960781AJun 1, 1976

Isocyanate-capped surface active compositions and methods of using them

ECONOMICS LAB16 citations68