Inventor
SHEPPARD WILLIAM L
US14 patents
⚠️ This page may combine multiple inventors who share the name “SHEPPARD WILLIAM L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AVM CORP
8 patentsUS4213595AJul 22, 1980
Butterfly valve
AVM CORP31 citations92
US4111395ASep 5, 1978
Butterfly valve
AVM CORP27 citations81
US4073465AFeb 14, 1978
Butterfly valve
AVM CORP17 citations81
US4601458AJul 22, 1986
Magnetic air valve
AVM CORP18 citations73
US4050472ASep 27, 1977
Fluid valve
AVM CORP12 citations73
US3995356ADec 7, 1976
Valve system
AVM CORP13 citations73
US3983894AOct 5, 1976
Fluid valves
AVM CORP8 citations73
US4204812AMay 27, 1980
Vacuum system
AVM CORP3 citations62
SHEPPARD WILLIAM L
4 patentsUS4906154AMar 6, 1990
Self-adjusting fastener assembly
SHEPPARD WILLIAM L27 citations91
US4714043ADec 22, 1987
Powered V-berth platform
SHEPPARD WILLIAM L7 citations72
US4664293AMay 12, 1987
Tube winder
SHEPPARD WILLIAM L20 citations72
US4431952AFeb 14, 1984
Electric powered apparatus
SHEPPARD WILLIAM L4 citations61