Patents by Inventor Wilfred Roth

Wilfred Roth 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).

  • Patent number: 6662651
    Abstract: A portable exercise device (20) having a force measuring system (28) and a length adjuster (30). The exercise device includes a pulley/securing device assembly (22) and a cord (24) having a gripping structure (26) at each of its ends. The pulley/securing device assembly has a pulley (38) for engaging the cord and a securing device (34) for securing the exercise device to a door (46). The force measuring system engages one of the gripping structures and determines magnitude of a tensile force (68) applied to that gripping member. The force measuring system is in communication with an electronic display (88′) that displays the magnitude of the tensile force to a user (27).
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: December 16, 2003
    Assignee: Javelin Sports, Inc.
    Inventor: Wilfred Roth
  • Patent number: 4523590
    Abstract: This invention relates to a method and device for effecting reversible sterilization in mammals. Specifically, the invention discloses means for occluding the fallopian tubes through the combined use of a notched plug inserted into each fallopian tube and a clip applied externally around a portion of the tube containing the plug.
    Type: Grant
    Filed: October 25, 1982
    Date of Patent: June 18, 1985
    Inventors: Wilfred Roth, C. Irving Meeker