Patents by Inventor Claus-Dieter Klein

Claus-Dieter Klein 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).

  • Toy simulating a physician's instrument
    Patent number: 4307539
    Abstract: A toy for a pseudo-medical kit, such as a make-believe reflex hammer, stethoscope, thermometer, sphygmomanometer or syringe, has a nonfunctional mobile part which resembles a functional element of the instrument simulated thereby and whose displacement or deformation produces a perceptible indication, such as the lighting of a lamp, a whistling sound, or the display or a numerical or pictorial reading.
    Type: Grant
    Filed: January 30, 1980
    Date of Patent: December 29, 1981
    Inventor: Claus-Dieter Klein
  • Toy
    Patent number: D957544
    Type: Grant
    Filed: October 16, 2020
    Date of Patent: July 12, 2022
    Assignee: Theo Klein GmbH
    Inventor: Claus Dieter Klein