Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Glenn Catlin0
Abbas Fattah0
John Hamnett0
Sunil Agrawal0
Date of Patent
October 13, 2009
0Patent Application Number
114091630
Date Filed
April 21, 2006
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A passive gravity balancing assist device for human sit-to-stand motion is provided. The design combines the use of auxiliary parallelograms with springs to produce an orthotic device wherein the total potential energy of the system is constant during standing and sitting motion.
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