Patents by Inventor Gregory J. Ochs

Gregory J. Ochs 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).

  • Built-up roof structure and method of preparing roof structure
    Patent number: 4530193
    Abstract: A built-up roof structure includes an insulating layer of expanded, foamed, closed cell, polystyrene insulation panels covering an entire roof. A water impermeable membrane is laid loosely over all of the insulation panels, and a protective layer of extruded, foamed, closed cell, polystyrene protection panels is installed over the membrane to have fissures between each protection panel to allow rain water to run down to the upper face of the membrane. Downwardly open channels are provided in the bottom of each of the protection panels to facilitate runoff.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: July 23, 1985
    Assignee: Minnesota Diversified Products, Inc.
    Inventor: Gregory J. Ochs