Coding pattern with plurality of orientation features in...
Coding scheme for encoded sheet material
Color barcode producing, reading and/or reproducing method...
Combined linear and two-dimensional bar code structure
Combined multi-spectral document markings
Compact matrix code and one-touch device and method for code...
Compact matrix code and one-touch device and method for code...
Compact optically readable data encoding
Computer game and method of playing the same
Computer-and human-readable part markings and system and...
Computer-based value-bearing item customization security
Concentric-ring circular bar code
Counterfeit proof label having optically concealed security...