Patents by Inventor Emil D. Hellmers

Emil D. Hellmers 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).

  • Marine pile protective system
    Patent number: 4697957
    Abstract: A preformed thick walled split tube of extruded hexene-ethylene copolymer of ultra high molecular weight forms a sheath about timber piles. The sheath is sealed to form a stagnant space toxic to marine borers. The sheath is tough, resilient and of high tensile strength sufficient to protect the pile from destructive mechanical forces and abrasion.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: October 6, 1987
    Inventor: Emil D. Hellmers