P

Inventor

RAYFIELD JERRY W

US6 patents
⚠️ This page may combine multiple inventors who share the name “RAYFIELD JERRY W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CYPRUS MINES CORP

3 patents
US5080235AJan 14, 1992

Small particle separator

CYPRUS MINES CORP14 citations68
US5107991AApr 28, 1992

Method and apparatus for friction sorting of particulate materials

CYPRUS MINES CORP5 citations58
US5069346ADec 3, 1991

Method and apparatus for friction sorting of particulate materials

CYPRUS MINES CORP5 citations54

RAYFIELD JERRY W

1 patent
US4835195AMay 30, 1989

Dry ground/wet ground calcium carbonate filler compositions

RAYFIELD JERRY W54 citations89

ECCA CALCIUM PRODUCTS INC

1 patent
US4898620AFeb 6, 1990

Dry ground/wet ground calcium carbonate filler compositions

ECCA CALCIUM PRODUCTS INC33 citations88

MASONITE CORP

1 patent
US4076871AFeb 28, 1978

Method of impregnating wood with boric acid

MASONITE CORP36 citations86