Patents by Inventor Guenter Buehlmaier

Guenter Buehlmaier 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).

  • Dining and/or serving cutlery made of ferritic stainless steel with a martensitic boundary layer
    Patent number: 8349094
    Abstract: The invention relates to dining and/or serving cutlery made of a steel material which is formed from a ferritic core with an essentially martensitic boundary layer. In the dining and/or serving cutlery of the invention, the surface hardness of the boundary layer, determined according to the hardness test according to Vickers HV 3, is thereby greater by 30 to 300% than the lowest hardness of the core, likewise measured according to Vickers HV 3.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: January 8, 2013
    Assignee: WMF Aktiengesellschaft
    Inventors: Cornelius Boerner, Guenter Buehlmaier, Wolfgang Friz, Alexander Kiefer, Martin Neumayer, Theda Staudinger
  • DINING AND/OR SERVING CUTLERY MADE OF FERRITIC STAINLESS STEEL WITH A MARTENSITIC BOUNDARY LAYER
    Publication number: 20100175269
    Abstract: The invention relates to dining and/or serving cutlery made of a steel material which is formed from a ferritic core with an essentially martensitic boundary layer. In the dining and/or serving cutlery of the invention, the surface hardness of the boundary layer, determined according to the hardness test according to Vickers HV 3, is thereby greater by 30 to 300% than the lowest hardness of the core, likewise measured according to Vickers HV 3.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 15, 2010
    Inventors: Cornelius Boerner, Guenter Buehlmaier, Wolfgang Friz, Alexander Kiefer, Martin Neumayer, Theda Staudinger