Patents by Inventor Marie R. P. Kalinowski

Marie R. P. Kalinowski 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 compositions
    Patent number: 4387180
    Abstract: A glass batch, and a fiberizable glass composition, comprising 2 percent B.sub.2 O.sub.3 is disclosed. The glass fibers have improved dry strength and water durability and have a surface boron concentration, in weight percent, of about 2.5.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: June 7, 1983
    Assignee: Owens-Corning Fiberglas Corporation
    Inventors: James S. Jen, Marie R. P. Kalinowski