Patents by Inventor Clive M. Freedman

Clive M. Freedman 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 and refractory fibre materials and method for making same
    Patent number: 4084977
    Abstract: A glass fibre product consists of less than 80% by weight SiO.sub.2 from 20 to 25% by weight of TiO.sub.2 and not more than about 0.1% by weight of alkali metal oxide, and is made by leaching with acid a glass fibre composition consisting of from 20 to 40% by weight of alkali metal oxide, from more than 12 up to 20% TiO.sub.2 and the balance to 100% of SiO.sub.2 and having a silica:titania ratio within a selected range.
    Type: Grant
    Filed: October 1, 1974
    Date of Patent: April 18, 1978
    Assignee: TBA Industrial Products Limited
    Inventor: Clive M. Freedman