Patents by Inventor James D. Castillo

James D. Castillo 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).

  • Adjustable polycentric orthopedic appliance hinge
    Patent number: 4599998
    Abstract: An orthopedic hinge is polycentric and employs a rack cooperating with pinions formed at the ends of the hinge arms. A special arrangement for limiting rack displacement is effective to selectively clamp the hinge arms at a given arm angle or to permit movement within a limited range of allowable angles.
    Type: Grant
    Filed: June 1, 1984
    Date of Patent: July 15, 1986
    Inventor: James D. Castillo