Patents by Inventor Bartholoneus Wilhelmus Kramer

Bartholoneus Wilhelmus Kramer 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).

  • Carrier for test-tubes
    Patent number: D466219
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: November 26, 2002
    Assignee: Micronic B.V.
    Inventors: Ronald Josephus Clemens Wynschenk, Bartholoneus Wilhelmus Kramer