Inventor
GERDT DAVID W
US14 patents
⚠️ This page may combine multiple inventors who share the name “GERDT DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPERRY MARINE INC
8 patentsUS5136669AAug 4, 1992
Variable ratio fiber optic coupler optical signal processing element
SPERRY MARINE INC180 citations98
US5026984AJun 25, 1991
Methods for sensing temperature, pressure and liquid level and variable ratio fiber optic coupler sensors therefor
SPERRY MARINE INC62 citations96
US4920412AApr 24, 1990
Atmospheric obscurant penetrating target observation system with range gating
SPERRY MARINE INC71 citations95
US5074309ADec 24, 1991
Device for monitoring cardiovascular signals and fiber optic coupler phonocardio sensor therefor
SPERRY MARINE INC42 citations92
US4882481ANov 21, 1989
Automatic brightness control for image intensifiers
SPERRY MARINE INC40 citations92
US5028801AJul 2, 1991
Apparatus and method for multiplexing fiber optic sensors
SPERRY MARINE INC12 citations73
US4879454ANov 7, 1989
Fiber optic fabrication furnace
SPERRY MARINE INC16 citations73
US5017793AMay 21, 1991
Optically driven RF generator
SPERRY MARINE INC11 citations71
EMPIRICAL TECHNOLOGIES CORP
3 patentsUS6723054B1Apr 20, 2004
Apparatus and method for measuring pulse transit time
EMPIRICAL TECHNOLOGIES CORP62 citations94
US6687424B1Feb 3, 2004
Sensing pad assembly employing variable coupler fiberoptic sensor
EMPIRICAL TECHNOLOGIES CORP33 citations90
US6907148B2Jun 14, 2005
Sensing apparatus employing variable coupler fiberoptic sensor
EMPIRICAL TECHNOLOGIES CORP6 citations60