Inventor
ZANK ANTHONY E
US21 patents
⚠️ This page may combine multiple inventors who share the name “ZANK ANTHONY E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOPAZ SYSTEMS INC
14 patentsUS6307955B1Oct 23, 2001
Electronic signature management system
TOPAZ SYSTEMS INC404 citations98
US7933840B2Apr 26, 2011
Electronic signature security system
TOPAZ SYSTEMS INC21 citations92
US6972754B2Dec 6, 2005
Touchpad stylus having isolated low-mass contact element
TOPAZ SYSTEMS INC19 citations92
USD532009SNov 14, 2006
Integrated signature pad and fingerprint reader
TOPAZ SYSTEMS INC23 citations91
US7436397B2Oct 14, 2008
Touchpad stylus having isolated low-mass contact element
TOPAZ SYSTEMS INC14 citations83
US7693312B2Apr 6, 2010
Method for authenticating an electronic signature
TOPAZ SYSTEMS INC6 citations69
US7190815B2Mar 13, 2007
Method for authenticating an electronic signature
TOPAZ SYSTEMS INC9 citations69
US7526108B2Apr 28, 2009
Wireless data management system
TOPAZ SYSTEMS INC6 citations57
US7123143B2Oct 17, 2006
Wireless signature management system
TOPAZ SYSTEMS INC4 citations57
US9329720B2May 3, 2016
Digitizer
TOPAZ SYSTEMS INC1 citations51
US9323409B2Apr 26, 2016
Digitizer
TOPAZ SYSTEMS INC0 citations51
US10693721B2Jun 23, 2020
Methods for serial port client server mapping
TOPAZ SYSTEMS INC0 citations43
US11526271B2Dec 13, 2022
Electronic signature capture via secure interface
TOPAZ SYSTEMS INC0 citations41
US9262004B2Feb 16, 2016
Overlay for electronic writing pad
TOPAZ SYSTEMS INC0 citations41