RC Graves, C Blanz, B Zenerino, K Huber… - US Patent …, 2017 - Google Patents
7,146,293 B2 12/2006 Badovinac et al. 7,170,881 B2 1/2007 Chaskar 7,233,990 B1 6/2007
Debaty et al. 7,263.361 B2 8/2007 Taylor 7,299,256 B2 11/2007 Pradhan et al. 7,509,131 …