Inventor
HARBAUGH STEVEN K
US16 patents
⚠️ This page may combine multiple inventors who share the name “HARBAUGH STEVEN K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AUTHENTICATION TECH INC
5 patentsUS5394969AMar 7, 1995
Capacitance-based verification device for a security thread embedded within currency paper
AUTHENTICATION TECH INC160 citations98
US5419424AMay 30, 1995
Currency paper security thread verification device
AUTHENTICATION TECH INC137 citations97
US5417316AMay 23, 1995
Capacitive verification device for a security thread embedded within currency paper
AUTHENTICATION TECH INC142 citations97
US5535871AJul 16, 1996
Detector for a security thread having at least two security detection features
AUTHENTICATION TECH INC35 citations92
US5810146ASep 22, 1998
Wide edge lead currency thread detection system
AUTHENTICATION TECH INC15 citations73
EOCOM CORP
4 patentsUS4312590AJan 26, 1982
Optical scanner and system for laser beam exposure of photo surfaces
EOCOM CORP22 citations81
US4081842AMar 28, 1978
Facsimile system
EOCOM CORP21 citations80
US4233636ANov 11, 1980
Optical read-write system with electronically variable image size
EOCOM CORP28 citations75
US4131029ADec 26, 1978
Gimballed coupling for lead screw and nut assembly
EOCOM CORP10 citations72