Inventor
EHRHARDT JR ROBERT A
US7 patents
⚠️ This page may combine multiple inventors who share the name “EHRHARDT JR ROBERT A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZIH CORP
5 patentsUS7079168B2Jul 18, 2006
Ribbon drive and tensioning system for a print and apply engine or a printer
ZIH CORP18 citations88
US7071961B2Jul 4, 2006
Ribbon drive and tensioning system for a print and apply engine for a printer
ZIH CORP22 citations88
US9168774B2Oct 27, 2015
Tri-state detector for detecting types of light
ZIH CORP4 citations67
US7391043B2Jun 24, 2008
Self calibrating media edge sensor
ZIH CORP6 citations60
US9962976B2May 8, 2018
Methods and apparatus to detect an ink ribbon based on types of light
ZIH CORP1 citations46