Patents by Inventor Isabelle Cohen

Isabelle Cohen 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).

  • Glass fibers decomposable in a physiological medium
    Patent number: 5108957
    Abstract: Glass compositions useful for forming fibers which are readily able to be degraded in a physiological medium such as that found in a human body. Advantageous compositions formed according to the present invention comprise the following components, set forth in percent by weight:SiO.sub.2 : 57 to 70%Al.sub.2 O.sub.3 : 0 to 5%CaO: 5 to 10%MgO: 0 to 5%Na.sub.2 O+K.sub.2 O: 13 to 18%B.sub.2 O.sub.3 : 2 to 12%F: 0 to 1.5%P.sub.2 O.sub.
    Type: Grant
    Filed: August 9, 1990
    Date of Patent: April 28, 1992
    Assignee: Isover Saint-Gobain
    Inventors: Isabelle Cohen, Sylvie Thelohan, Hans Furtak, Hartmut Tiesler