Patents Assigned to Ehrenfried Technologies, Inc.
  • Electromechanical resistance exercise apparatus
    Patent number: 6050920
    Abstract: A strength and exercise apparatus that provides an opposing resistive force which in its total will always only equal the potential and varying exerted force created by the user. The apparatus will also have the ability to create an exerted force which in its total will always only equal the potential and varying resistive force provided by the user.
    Type: Grant
    Filed: August 12, 1997
    Date of Patent: April 18, 2000
    Assignee: Ehrenfried Technologies, Inc.
    Inventor: Ted R. Ehrenfried
  • Electromechanical resistance exercise apparatus
    Patent number: 5697869
    Abstract: A strength and exercise apparatus that provides an opposing resistive force which in its total will always only equal the potential and varying exerted force created by the user. The apparatus will also have the ability to create an exerted force which in its total will always only equal the potential and varying resistive force provided by the user.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: December 16, 1997
    Assignee: Ehrenfried Technologies, Inc.
    Inventors: Ted R. Ehrenfried, Scott A. Ehrenfried