Inventor
MAIER LAWRENCE CARL
US9 patents
Patents
9 patentsUS6141194AOct 31, 2000
Aircraft fuel tank protective barrier and method
SIMMONDS PRECISION PRODUCTS53 citations94
US7358720B1Apr 15, 2008
Proximity sensor interface
SIMMONDS PRECISION PRODUCTS24 citations90
US6800867B2Oct 5, 2004
System for measuring a parameter inside an adverse environment while protecting the adverse environment against potentially dangerous threats with an active safety barrier circuit
SIMMONDS PRECISION PRODUCTS7 citations71
US5912829AJun 15, 1999
Universal narrow band signal conditioner
SIMMONDS PRECISION PRODUCTS16 citations71
US7006339B2Feb 28, 2006
Apparatus for and method of protecting the safe side wiring of a protective barrier against transferring fault energy into a potentially explosive environment
SIMMONDS PRECISION PRODUCTS3 citations60
US7355392B2Apr 8, 2008
Printed circuit card-based proximity sensor and associated method of detecting a proximity of an object
SIMMONDS PRECISION PRODUCTS4 citations58
US7271585B2Sep 18, 2007
Method of fabricating a multilayer wiring board proximity sensor
SIMMONDS PRECISION PRODUCTS2 citations58
US7250857B2Jul 31, 2007
Multiplexer method and system for intrinsically safe applications and a multiplexer switch for use therein
SIMMONDS PRECISION PRODUCTS1 citations50
US7321102B2Jan 22, 2008
Float switch transient suppression device
SIMMONDS PRECISION PRODUCTS0 citations36