Patents by Inventor Armin Hawlik

Armin Hawlik 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).

  • Measuring element made of steel with hardened edge zone
    Patent number: 9562838
    Abstract: A steel measuring element is provided. The steel measuring element is made of an austenitic chromium-nickel steel with a low carbon and nitrogen content for measuring pressure, with an edge zone being provided with increased hardness.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: February 7, 2017
    Assignee: WIKA ALEXANDER WIEGAND SE & CO. KG
    Inventors: Rolf Bloecher, Rolf Kaufmann, Armin Hawlik
  • Measuring Element Made of Steel With Hardened Edge Zone
    Publication number: 20150253230
    Abstract: A steel measuring element is provided. The steel measuring element is made of an austenitic chromium-nickel steel with a low carbon and nitrogen content for measuring pressure, with an edge zone being provided with increased hardness.
    Type: Application
    Filed: March 20, 2014
    Publication date: September 10, 2015
    Inventors: Rolf Bloecher, Rolf Kaufmann, Armin Hawlik