Patents by Inventor Hans BJERKAAS

Hans BJERKAAS 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).

  • Aluminium extrusion alloy suitable for etched and anodized components
    Patent number: 11542576
    Abstract: Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: January 3, 2023
    Assignee: NORSK HYDRO ASA
    Inventors: Øystein Bauger, Oddvin Reiso, Hans Bjerkaas, Tom Hauge, Snorre Kjørstad Fjeldbo
  • ALUMINIUM EXTRUSION ALLOY SUITABLE FOR ETCHED AND ANODIZED COMPONENTS
    Publication number: 20190256954
    Abstract: Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1.
    Type: Application
    Filed: November 30, 2016
    Publication date: August 22, 2019
    Applicant: NORSK HYDRO ASA
    Inventors: Øystein BAUGER, Oddvin REISO, Hans BJERKAAS, Tom HAUGE, Snorre Kjørstad FJELDBO