Patents by Inventor Daniel N. Hess

Daniel N. Hess 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).

  • Inhibiting stress cracking
    Patent number: 4004055
    Abstract: A method of inhibiting stress cracking of stainless steel exposed to a chloride-ion containing fluid environment which comprises coating the surface of the stainless steel with at least a trace amount of metallic mercury. The invention also contemplates the mercury/stainless steel amalgam.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: January 18, 1977
    Inventors: Daniel N. Hess, Ramon A. Bannister