Inventor
TROFFKIN HOWARD J
US6 patents
⚠️ This page may combine multiple inventors who share the name “TROFFKIN HOWARD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GRACE W R & CO
5 patentsUS4650730AMar 17, 1987
Battery separator
GRACE W R & CO169 citations97
US4731304AMar 15, 1988
Battery separator
GRACE W R & CO100 citations95
US5281491AJan 25, 1994
Battery separator
GRACE W R & CO76 citations93
US5240655AAug 31, 1993
Process of making a battery separator
GRACE W R & CO82 citations93
US4398959AAug 16, 1983
Mortar topping with calcium nitrite
GRACE W R & CO12 citations73