Inventor

WALKER THOMAS A

US8 patents

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

BIO CYBERNETICS INT

2 patents

USRE35940EOct 27, 1998

Electromechanical back brace apparatus

BIO CYBERNETICS INT117 citations97

US5226874AJul 13, 1993

Electromechanical back brace apparatus

BIO CYBERNETICS INT87 citations93

KEYSTONE DRILL SERVICES INC

2 patents

US7389833B2Jun 24, 2008

Multi-sectional percussive drill bit assembly

KEYSTONE DRILL SERVICES INC19 citations78

US7419017B2Sep 2, 2008

Multi-sectional percussive drill bit assembly

KEYSTONE DRILL SERVICES INC5 citations58

WALKER THOMAS A

1 patent

US4852669AAug 1, 1989

Directional downhole drill apparatus

WALKER THOMAS A28 citations87

MILLENNIA DESIGN INC

1 patent

US4869699ASep 26, 1989

Flying disk with centrifugally activated sound generator

MILLENNIA DESIGN INC35 citations85

ESSEX TEC CORP

1 patent

US4636775AJan 13, 1987

Sensor for an alarm system

ESSEX TEC CORP7 citations71

MUSIC MAN INC

1 patent

US3978421AAug 31, 1976

Electrical musical instrument amplifier having improved tremolo circuit, improved reverberation control, and power reduction circuit for distortion mode operation

MUSIC MAN INC4 citations55