Patents by Inventor Jacob Wilhelmus Erken

Jacob Wilhelmus Erken 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).

  • Wiping devices
    Patent number: 5862562
    Abstract: A squeegee, liquid applicator or similar device having a handle pivotally attached to a head whereby the head, containing a squeegee blade and/or wiping component, is pivotal relative to the handle in a plane inclined toward the top of the handle when the device is in use whereby motion of the head is readily controllable by rotation or twisting of the handle as the handle follows an "S" shaped path of motion.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: January 26, 1999
    Inventor: Jacob Wilhelmus Erken