Patents by Inventor Klaas Martens

Klaas Martens 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).

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    Patent number: D320349
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: October 1, 1991
    Assignee: Cooperative Condensfabriek "Friesland" WA
    Inventor: Klaas Martens