Patents by Inventor Charles Howard Olk

Charles Howard Olk 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).

  • Method for making carbon nanotubes
    Patent number: 5753088
    Abstract: Carbon nanotubes are produced by submerging carbonaceous anode and cathode electrodes in liquid nitrogen or other suitable liquefied materials such as helium or hydrogen, and passing a direct current between the electrodes to strike a plasma arc between the anode and cathode that erodes carbon from the anode and deposits carbon nanotubes on the surface of the cathode.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: May 19, 1998
    Assignee: General Motors Corporation
    Inventor: Charles Howard Olk