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Inventor

BARTHOLD MICHAEL J

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

CAIRNS & BROTHER INC

5 patents
US6032297AMar 7, 2000

Head-protective helmet and assemblies thereof

CAIRNS & BROTHER INC162 citations97
US5996126ADec 7, 1999

Crown pad and head-protective helmet

CAIRNS & BROTHER INC61 citations95
US5937439AAug 17, 1999

Combination head and eye-protective apparatus and goggles

CAIRNS & BROTHER INC78 citations95
US5898949AMay 4, 1999

Head-protective helmet mounting member for mounting helmet components together and head band

CAIRNS & BROTHER INC89 citations95
US5845341ADec 8, 1998

Combination head and eye-protective apparatus and goggles

CAIRNS & BROTHER INC67 citations95

MINE SAFETY APPLIANCES CO

1 patent
US6298249B1Oct 2, 2001

Radio apparatus head-protective helmet

MINE SAFETY APPLIANCES CO66 citations93