Patents by Inventor Harold O. Button

Harold O. Button 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).

  • Solvent dehydration system
    Patent number: 4199433
    Abstract: Improvements in processes for stripping solvent from dewaxed oils and deoiled waxes; the use of an inert gas (such as nitrogen) as a stripping agent for removing solvent from dewaxed oils, deoiled waxes and slack waxes resultant from solvent dewaxing processes.
    Type: Grant
    Filed: February 5, 1979
    Date of Patent: April 22, 1980
    Assignee: The C. W. Nofsinger Company
    Inventors: Harold O. Button, Thomas F. McCall, Donald W. Meyer