Patents by Inventor Daniel Bertannier

Daniel Bertannier 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).

  • Water proofing agent
    Patent number: 4076885
    Abstract: A high quality water proofing material of easier applicability than those employed previously comprises a non woven fabric of isostatic polypropylene fibres treated with a mixture of bitumen and sulphur.
    Type: Grant
    Filed: October 16, 1975
    Date of Patent: February 28, 1978
    Assignees: Holzstoff. S.A., Viafrance S.A., Societe Nationale Elf Aquitaine (Production) - SNEA(P)
    Inventors: Maurice Brossel, Gilbert Laurent, Daniel Bertannier