Patents by Inventor Charles R. Groetzinger

Charles R. Groetzinger 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 box with small part sifter
    Patent number: 5026128
    Abstract: An improved Toy Box comprised of a container in which to store toys with a grill structured subfloor that permits small toys to fall through to a drawer below while hodling larger toys above.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: June 25, 1991
    Inventor: Charles R. Groetzinger
  • Versatile wall mount folding table
    Patent number: 4998484
    Abstract: An improved and highly versatile wall mounted folding table with mounting brackets of various configurations, to allow the table to be mounted directly to planar wall surfaces and exposed wall support studs. By varying the vertical distance between the upper and lower mounting brackets, a forward sloping table surface is formed for use in drafting.
    Type: Grant
    Filed: September 11, 1989
    Date of Patent: March 12, 1991
    Assignee: Niche Design, Inc.
    Inventor: Charles R. Groetzinger