Interactive generator: a self-powered haptic feedback device. - Akash Badshah; Sidhant Gupta; Gabe Cohn; Nicolas Villar; Steve Hodges 001; Shwetak N. Patel (CHI, 2011)

GyroTab: a handheld device that provides reactive torque feedback. - Akash Badshah; Sidhant Gupta; Daniel Morris 001; Shwetak N. Patel; Desney S. Tan (CHI, 2012)