Patents by Inventor Ake Östlund

Ake Östlund 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 body with increased wear resistance
    Patent number: 6210632
    Abstract: As there is disclosed a cemented carbide body comprising WC with an average grain size of <10 &mgr;m in a binder phase. In the cemented carbide body the WC grains can be classified in at least two groups in which a group of smaller grains has a maximum grain size amax and a group of larger grains has a minimum grain size bmin and each group contains at least 10 % of the total amount of WC grains. According to the invention bmin−amax>0.5 &mgr;m and the difference in grain size within each group is >1 &mgr;m.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: April 3, 2001
    Assignee: Sandvik AB
    Inventors: Ake Östlund, Mats Waldenström, Ove Alm