Inventor
POKALSKY PETER A
US5 patents
Patents
5 patentsUS4684930AAug 4, 1987
Method and apparatus for deactivating targets used in electromagnetic type article surveillance systems
KNOGO CORP39 citations91
US4665387AMay 12, 1987
Method and apparatus for target deactivation and reactivation in article surveillance systems
KNOGO CORP46 citations91
US4476459AOct 9, 1984
Theft detection method and apparatus in which the decay of a resonant circuit is detected
KNOGO CORP40 citations91
US4568921AFeb 4, 1986
Theft detection apparatus and target and method of making same
KNOGO CORP50 citations90
US4321586AMar 23, 1982
Article theft detection
KNOGO CORP28 citations81