Noncontacting data carrier

Ocular identification system for use with a medical device

Online election system

Open road vehicle emissions inspection

Open-ended pc host interface for vehicle data recorder

Operating system and methods for seeding a random serial...

Operation data recording system

Operation management apparatus

Operator with transmitter storage overwrite protection and...

Opinion sampling device

Orthodontic appliance

Paperless log system and method

Parkdisc

Parking cards

Parking fee system and method

Parking management system

Parking meter

Parking meter

Parking meter assemblies

Parking meter enforcement system