Universal electronic identification tag

Universal electronic identification tag

User interface for portable RFID reader

User interface systems

Validation of the presence of an electromagnetic transponder...

Validation of the presence of an electromagnetic transponder...

Velocity pickups of the horizontal seismometer type

Very high frequency transponder, in particular a UHF...

Vibration transducer with improved viscous damping

Weight-on-drill-bit and torque-measuring apparatus

Well bore communication method

Well bore data-transmission apparatus

Well bore data-transmission apparatus with debris clearing appar

Well data telemetry by explosions

Well depth matcher utilizing programmable shifting of well loggi

Well logging method and means using an armored multiconductor co

Well survey system modulation technique

Wellbore instrument hanger

Wide area and large capacity intelligent object tracking...

Wireless communication devices and methods of forming and...