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Stephen E. Hannah
PLACENTIA, CA US
1. 20090002172 SYSTEM FOR COMMUNICATING WITH AND MONITORING MOVEMENT OF HUMAN-PROPELLED VEHICLES 01-01-20092. 20090002160 USAGE MONITORING OF SHOPPING CARTS OR OTHER HUMAN-PROPELLED VEHICLES 01-01-2009
3. 20080319625 CART BRAKING CONTROL DURING MECHANIZED CART RETRIEVAL 12-25-2008
4. 20080316059 ANTENNA-BASED ZONE CREATION FOR CONTROLLING MOVEMENT OF VEHICLES 12-25-2008
5. 20080316029 CART CLUSTER DETECTION AND ESTIMATION - vehicle tracking system includes a wheel containing sensor circuitry capable of sensing various types of 12-25-2008
6. 20080315540 SYSTEM FOR ENHANCING USE OF A SHOPPING CART 12-25-2008
7. 20080314667 WHEEL SKID DETECTION DURING MECHANIZED CART RETRIEVAL 12-25-2008