Patents by Inventor Okan Akin

Okan Akin 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).

  • Corrosion-resistant copper alloy and article containing the same
    Patent number: 4780275
    Abstract: A corrosion-resistant copper-based alloy contains 0.1-5 percent by weight of nickel; 0.01-1.5 percent by weight total of titanium and niobium; 0.2-5 percent by weight total of iron and chromium; 0.01-0.25 percent by weight total of germanium and gallium; and up to 0.01 percent by weight each of the trace elements phosphorus, silicon and manganese. The alloying elements passivate and cathodically protect the copper while the trace elements function as stabilizers. The alloy may be used for the facades of buildings, for roofs, for the gutters of buildings and for applications involving flowing corrosive media.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: October 25, 1988
    Assignee: William Prym-Werke GmbH. & Co. KG.
    Inventors: Horst Grefkes, Alex Troost, Okan Akin, Michael Prym