In-pavement wireless vibration sensor nodes, networks and systems
Ravneet Bajwa, Ram Rajagopal, Robert Kavaler and Pravin Varaiya
U.S. Patent 8,990,032. March 2015

Method and apparatus generating and/or using estimates of arterial vehicular movement
Robert Kavaler, Karric Kwong, Ram Rajagopal and Pravin Varaiya
U.S. Patent 8,989,996. March 2015

Method and apparatus matching incoming to outgoing vehicle signatures to estimate arterial vehicular movement
Karric Kwong, Robert Kavaler, Ram Rajagopal and Pravin Varaiya
U.S. Patent 8,428,857. April 2013

Method and apparatus generating estimates vehicular movement involving multiple input-output roadway nodes
Karric Kwong, Robert Kavaler, Pravin Varaiya and Ram Rajagopal
U.S. Patent 8,396,650. March 2013

Minimizing power consumption in a wireless system for a sensor networks using time slots for nodes
Pravin Varaiya and Coleri Ergen Sinem
U.S. Patent 7,738,413. June 2010

System and method for conducting combinatorial exchanges
Rahul Jain, Charis Kaskiris, Pravin Varaiya, Jun Shu, Ram Rajagopal and Nisha Sivasankara Pillai
U.S. Patent 7,627,510. December 2009