Patents by Inventor George J. Mraz

George J. Mraz 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).

  • Pressure vessel construction and method
    Patent number: 4093100
    Abstract: A pressure vessel with an alloyed steel wall and having at least one ring of weldable steel secured thereon and wherein a temperature control jacket associated with said vessel is welded to said ring.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: June 6, 1978
    Assignees: National Force Company, Societe Chimique des Charbonnages-CDF Chimie
    Inventors: Hugh Ford, George J. Mraz, Jean Noel Simier