Patents by Inventor Adelbert M. D. G. van Seumeren

Adelbert M. D. G. van Seumeren 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).

  • Lifting tool
    Patent number: 4605132
    Abstract: A lifting device for a marine vessel having a foot part that can be put on a flat support and an upper part adapted to pivot with respect to the foot part about a vertical axis and having at least one lifting arm and the lifting arm being extendible by a hydraulic cylinder assembly.
    Type: Grant
    Filed: May 2, 1984
    Date of Patent: August 12, 1986
    Inventor: Adelbert M. D. G. van Seumeren