Patents by Inventor Håkan Engstr?m

Håkan Engstr?m 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).

  • Cemented carbide tool and method of making the same
    Patent number: 7449043
    Abstract: A cemented carbide tool comprising hard constituents in a binder phase of Co and/or Ni and at least one surface portion and an interior portion in which surface portion the grain size is smaller than in the interior portion is disclosed. The surface portion with the fine grain size has a lower binder phase content than the interior portion. A method to form the cemented carbide cutting tool is also disclosed.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: November 11, 2008
    Assignee: Sandvik Intellectual Property Aktiebolag
    Inventors: Marianne Collin, Susanne Norgren, Håkan Engstrōm