Patents by Inventor Joel L. Wentz

Joel L. Wentz 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).

  • Modular roofing system and assembly
    Patent number: 6415570
    Abstract: A modular drainage system and/or assembly for flat-roofed or low-slope roofed structures available without field fabrication.
    Type: Grant
    Filed: September 1, 2000
    Date of Patent: July 9, 2002
    Assignee: Roofers Mart of Wisconsin, Inc.
    Inventor: Joel L. Wentz