Inventor

HELLWIG KLAUS-DIETER

DE3 patents

Patents

3 patents

US6800267B2Oct 5, 2004

Doped precipitated silica

DEGUSSA25 citations86

US6921781B2Jul 26, 2005

Process for covering silicas with wax

DEGUSSA7 citations64

US4536383AAug 20, 1985

Method for preparation of alkali metal selenates

DEGUSSA2 citations50