Inventor

HOFFMAN HENRY E

US3 patents

Patents

3 patents

US4604278AAug 5, 1986

Production of ammonium tetrathiomolybdate

GTE PROD CORP19 citations71

US4604277AAug 5, 1986

Production of ammonium tetrathiotungstate

GTE PROD CORP8 citations71

US4889703ADec 26, 1989

Process for producing tungstosilicic acid

GTE PROD CORP2 citations60