Inventor
DUEKER TODD A
US7 patents
⚠️ This page may combine multiple inventors who share the name “DUEKER TODD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
WELCH ALLYN DATA COLLECTION
3 patentsUS6155491ADec 5, 2000
Lottery game ticket processing apparatus
WELCH ALLYN DATA COLLECTION198 citations99
US6186404B1Feb 13, 2001
Security document voiding system
WELCH ALLYN DATA COLLECTION170 citations98
US6304660B1Oct 16, 2001
Apparatuses for processing security documents
WELCH ALLYN DATA COLLECTION81 citations96
HAND HELD PROD INC
3 patentsUS6752319B2Jun 22, 2004
Lottery game tickets and methods for making same
HAND HELD PROD INC191 citations98
US6419157B1Jul 16, 2002
Methods for processing security documents
HAND HELD PROD INC168 citations98
US6405929B1Jun 18, 2002
Material detection systems for security documents
HAND HELD PROD INC162 citations98