Inventor

HILLMAN ROBERT L

US3 patents

⚠️ This page may combine multiple inventors who share the name “HILLMAN ROBERT L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NAVOX CORP

2 patents

US6522265B1Feb 18, 2003

Vehicle tracking and security system incorporating simultaneous voice and data communication

NAVOX CORP174 citations95

US6320535B1Nov 20, 2001

Vehicle tracking and security system incorporating simultaneous voice and data communication

NAVOX CORP107 citations94

CELLUTRAC INC

1 patent

US6140956AOct 31, 2000

Vehicle tracking and security system incorporating simultaneous voice and data communication

CELLUTRAC INC214 citations94