P

Inventor

BARBER JR WILLIAM R

5 patents
⚠️ This page may combine multiple inventors who share the name “BARBER JR WILLIAM R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ESCO CORP

4 patents
US4335532AJun 22, 1982

Excavating tooth

ESCO CORP138 citations93
US4404760ASep 20, 1983

Excavating tooth

ESCO CORP143 citations91
US4030253AJun 21, 1977

Method of casting beneficiation

ESCO CORP2 citations60
US4454205AJun 12, 1984

Method of drill bit manufacture and product

ESCO CORP2 citations55

BARBER JR WILLIAM R

1 patent
US4933240AJun 12, 1990

Wear-resistant carbide surfaces

BARBER JR WILLIAM R34 citations86