3D puzzle generation, algorithms for generation, and physical instantiations
Jonathan Bachrach and Saul Griffith
U.S. Patent 8,628,393. January 2014

Methods and apparatus for energy demand management
Jacob S. Beal and Jonathan Bachrach
U.S. Patent 8,583,291. November 2013

Methods and apparatus for energy demand management
Jacob S. Beal and Jonathan Bachrach
U.S. Patent 8,271,147. September 2012