Newton, Massachusetts, USA-based Barrett Technology was incorporated by William T. Townsend in 1990.[1] Barrett manufactures robotic arms and hands installed in 20 countries on 6 continents. Barrett is credited in The Guinness Book of World Records, Millennium Edition, as maker of the world’s “most advanced robotic arm.”[2] Its 7-axis robotic arm, named the WAM arm for Whole Arm Manipulation[3] is based on Puck electronics[4] and mechanical[5][6][7] drive technologies and designed to interact directly with people.[3][8] One application of an early version of the technology has been the arm manufactured and sold by MAKO Surgical Corp. which enables haptically-guided minimally-invasive knee surgery.[9]
The Puck powered BarrettHand BH8-series product is based on technology licensed from the University of Pennsylvania[10][11] and developed by Gill Pratt, Yoky Matsuoka, and William Townsend[12] into its present form.
^Kynaston, Nic (2000). 'Guinness World Records, Millennium Edition'. London, UK: Guinness Media Inc. pp. 170–171. ISBN1-892051-00-1.
^ abUS 5207114, J. Kenneth Salisbury Jr., (Cambridge, MA) William T. Townsend (Somerville, MA) & William T. Townsend, "Compact cable transmission with cable differential", issued 1993-05-04, assigned to Massachusetts Institute of Technology (Cambridge, MA)
^US 7511443, William T. Townsend, (Weston, MA) Adam Crowell, (Beverly, MA) Gill Pratt, (Lexington, MA), Traveler Hauptman, (Watertown, MA); Adam Crowell & Gill Pratt et al., "Ultra-compact, high-performance motor controller and method of using same", issued 2009-03-31, assigned to Barrett Technology, Inc. (Cambridge, MA)
^US 4903536, J. Kenneth Salisbury Jr., (Cambridge, MA), William T. Townsend, (Somerville, MA), David M. DiPietro, (Webster, NY), Brian S. Eberman, (Rochester, MN); William T. Townsend & David M. DiPietro et al., "Compact cable transmission with cable differential", issued 1990-02-27, assigned to Massachusetts Institute of Technology (Cambridge, MA)
^US 5046375, J. Kenneth Salisbury Jr., (Cambridge, MA) William T. Townsend, (Somerville, MA) David M. DiPietro, (Webster, NY) Brian S. Eberman, (Rochester, MN); William T. Townsend & David M. DiPietro et al., "Compact cable transmission with cable differential", issued 1991-09-10, assigned to Massachusetts Institute of Technology (Cambridge, MA)
^US 5388480, William T. Townsend, (Weston, MA), "Pretensioning mechanism for tension element drive systems", issued 1995-02-14, assigned to Barrett Technology, Inc. (Cambridge, MA)
^US 4957320, Nathan T. Ulrich, (Philadelphia, PA), "Methods and apparatus for mechanically intelligent grasping", issued 1990-09-18, assigned to Trustees of the University of Pennsylvania (Philadelphia, PA)
^US 5501498, Nathan T. Ulrich, (Philadelphia, PA), "Methods and apparatus for mechanically intelligent grasping", issued 1996-03-26, assigned to Trustees of the University of Pennsylvania (Philadelphia, PA)
^US 7168748, William T. Townsend, (Weston, MA) Traveler Hauptman, (Cambridge, MA) Adam Crowell, (Beverly, MA) Brian Zenowich, (Boston, MA) John Lawson, (Petersboro, MA) Vitaliy Krutik, (Lynn, MA) Burt Doo, (Cambridge, MA); Traveler Hauptman & Adam Crowell et al., "Intelligent, self-contained robotic hand", issued 1996-03-26, assigned to Barrett Technology, Inc. (Cambridge, MA)