Patents by Inventor Kaj Sjogren

Kaj Sjogren 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).

  • Wear cap style excavating tooth
    Patent number: 4587751
    Abstract: An excavating tooth assembly including a relatively elongated adapter equipped with a point at the digging end and at least one wear cap normally held in place by the point, and lock means in the adapter to prevent dislodging of the wear cap.
    Type: Grant
    Filed: March 6, 1985
    Date of Patent: May 13, 1986
    Assignee: ESCO Corporation
    Inventors: Kaj Sjogren, James Brosh