Patents by Inventor Smith Choi

Smith Choi 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: 4508349
    Abstract: An improved golf club has a striking face which includes a central portion having an accentuated roll. The roll portion has a radius of curvature preferably between 1 inch and 0.70 inch. Grooves extend parallel to the accentuated roll portion on opposite sides thereof. An upper substantially flat surface extends along the striking face above the upper groove, and a lower substantially flat surface extends along the striking face below the lower groove. These surfaces reduce the effect of a mis-hit. The club face may also have a bulge with a radius of curvature of approximately 4 feet and a loft preferably between 8 and 18 degrees. The increased compression provided by the accentuated roll increases the distance of a drive by approximately ten percent.
    Type: Grant
    Filed: November 15, 1983
    Date of Patent: April 2, 1985
    Inventors: Paul W. Gebauer, Smith Choi