@patent{hu2020method, title = {Method of actuating a shape changeable member, shape changeable member and actuating system}, author = {Hu, Wenqi and Lum, Guo Zhan and Mastrangeli, Massimo and Sitti, Metin}, publisher = {Google Patents}, month = jan, year = {2020}, note = {US Patent App. 16/477,593}, doi = {}, month_numeric = {1} }