Patents by Inventor Marie-Oldile Jacquier

Marie-Oldile Jacquier 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).

  • Biaxially drawn, filled polyester film substrates
    Patent number: 4654249
    Abstract: Biaxially drawn, filled polyester film substrates, well adapted for the manufacture of magnetic recording tapes, are comprised of a biaxially stretched thermoplastic film matrix including a particulate filler material distributed therethrough, said filler material comprising (a) from about 0.01% to 1% by weight thereof of kaolinite particles having a mean particle size no greater than about 1 micron, and (b) from about 0.01% to 1% by weight thereof of titanium oxide particles also having a mean particle size no greater than about 1 micron.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: March 31, 1987
    Assignee: Rhone-Poulenc Films
    Inventors: Jacques Barbey, Marie-Oldile Jacquier