Inventor

BUTTS LAWRENCE D

US8 patents

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

SCOVILL INC

4 patents

USD271374SNov 15, 1983

Knob escutcheon

SCOVILL INC54 citations95

US4598939AJul 8, 1986

Exit device

SCOVILL INC26 citations91

US4390197AJun 28, 1983

Electrically controlled latch

SCOVILL INC45 citations91

US4488036ADec 11, 1984

Keycard reader

SCOVILL INC7 citations72

AMWAY CORP

1 patent

US4918426AApr 17, 1990

Method and apparatus for sensing fluid flow volume to indicate end of filter life

AMWAY CORP94 citations95

TELKEE INC

1 patent

US4211443AJul 8, 1980

Electric strike

TELKEE INC105 citations92

FOLGER ADAM CO

1 patent

US4140357AFeb 20, 1979

Electric hinge

FOLGER ADAM CO54 citations92

THOMAS & BETTS INT

1 patent

US6015302AJan 18, 2000

Power distribution center

THOMAS & BETTS INT69 citations91