Patents by Inventor Abbas Fattah

Abbas Fattah has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Passive gravity-balanced assistive device for sit-to-stand tasks
    Patent number: 7601104
    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.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: October 13, 2009
    Assignee: University of Delaware
    Inventors: Sunil Agrawal, Abbas Fattah, Glenn Catlin, John Hamnett
  • Gravity balanced orthosis apparatus
    Patent number: 7544155
    Abstract: Passive gravity balancing orthosis apparatus for assisting and training patients suffering from muscle weakness by relieving the patients afflicted member of its weight using a plurality of articulated supporting members. Relief is obtained by identifying and fixing the center of mass of the combined articulated equipment members and supported weight of the patient's member in space using a defined parallelogram mechanism and once so identified making the total potential energy for any configuration of the articulated members of the system constant. At least one zero free length spring is used to connect the center of mass to a support outside the articulated members. Additional springs connect the center of mass to the articulated members.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: June 9, 2009
    Assignee: University of Delaware
    Inventors: Sunil K. Agrawal, Abbas Fattah, Sal Banala
  • Passive gravity-balanced assistive device for sit-to-stand tasks
    Publication number: 20060260621
    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.
    Type: Application
    Filed: April 21, 2006
    Publication date: November 23, 2006
    Inventors: Sunil Agrawal, Abbas Fattah, Glenn Catlin, John Hamnett
  • Gravity balanced orthosis apparatus
    Publication number: 20060241539
    Abstract: Passive gravity balancing orthosis apparatus for assisting and training patients suffering from muscle weakness by relieving the patients afflicted member of its weight using a plurality of articulated supporting members. Relief is obtained by identifying and fixing the center of mass of the combined articulated equipment members and supported weight of the patient's member in space using a defined parallelogram mechanism and once so identified making the total potential energy for any configuration of the articulated members of the system constant. At least one zero free length spring is used to connect the center of mass to a support outside the articulated members. Additional springs connect the center of mass to the articulated members.
    Type: Application
    Filed: April 25, 2005
    Publication date: October 26, 2006
    Inventors: Sunil Agrawal, Abbas Fattah, Sal Banala