Helmet and/or a helmet liner with at least one internal flexibility sipe with an attachment to control and absorb the impact of torsional or shear forces
US 8,732,868
Surgically implantable electronic and/or electromechanical prosthetic device enclosed in an inner bladder surrounded by an outer bladder and having an internal sipe between bladders
US 8,562,678
Wire cable for electronic devices, including a core surrounded by two layers configured to slide relative to each other
US 8,494,324
