HF

Hartwell Fong

DC Digital Security Controls: 4 patents #5 of 21Top 25%
📍 Scarborough, CA: #115 of 629 inventorsTop 20%
Overall (All Time): #1,283,170 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5917410 Glass break sensor Dennis Cecic 1999-06-29
5831528 Detection of glass breakage Dennis Cecic 1998-11-03
5675320 Glass break detector Dennis Cecic 1997-10-07
5504473 Method of analyzing signal quality Dennis Cecic 1996-04-02