Patents by Inventor Andre Jevanoff

Andre Jevanoff 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).

  • Bitumenous compositions
    Patent number: 4659759
    Abstract: Bitumen modified with a modifier comprising a defined elastomeric component and a polyolefin component containing polyethylene and polypropylene has improved high temperatures and low temperature properties which make it especially suitable for roofing applications. The elastomeric component is an ethylene propylene copolymer having a broad compositional distribution with regard to its ethylene content.
    Type: Grant
    Filed: April 9, 1985
    Date of Patent: April 21, 1987
    Assignee: Exxon Research & Engineering Co.
    Inventors: Andre Jevanoff, Edward N. Kresge