Patents by Inventor Harold A. Koller

Harold A. Koller 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).

  • Portable cushioned floor system
    Patent number: 4860516
    Abstract: A portable cushioned floor system utilizes a modular construction in which each floor module is enclosed with a lower floor plate that protects the flexible resilient cushioning layer during transport and installation and after installation. The lower floor plate is attached to a floor-supporting upper plate with fasteners that maintain a maximum spacing yet permit full flexibility of the intermediate cushioning layer.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: August 29, 1989
    Inventors: Gregory V. Koller, Harold A. Koller