The cutest robot dog ever!

Patent Information
Publication number: US7942221 B1
Patent Title: Method and system for enabling bi-pedal locomotion
Publication date: 17 May 2011
Filing date: 19 Jun 2009
Priority date: 20 Jun 2008
Inventors: Mark Woodruff Tilden
Original Assignee: Wowwee Group Limited

US7942221