Patents by Inventor Michal Wujczak

Michal Wujczak 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).

  • Power source for welding
    Patent number: D626576
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: November 2, 2010
    Assignee: Esab AB
    Inventors: Tomasz Gramatyka, Michal Wujczak
  • Power source for welding
    Patent number: D654519
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: February 21, 2012
    Assignee: ESAB AB
    Inventors: Michal Wujczak, Tomasz Gramatyka