Patents by Inventor Angelo Romano

Angelo Romano 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).

  • Tanning composition and its use in the tanning and post-tanning of animal hides
    Patent number: 4902298
    Abstract: A tanning composition containing:(a) aluminum chlorohydroxide(b) the product of condensation of dicyandiamide and formaldehyde;(c) basic chrome sulphate; and(d) polyacrylic acid, polymethacrylic acid or a copolymer of acrylic acid and methacrylic acid;makes it possible, in the tanning treatments, of stably fixing high chrome levels in the animal hides, and of exhausting, to a substantially complete extent, the chrome contained in the tanning bath.
    Type: Grant
    Filed: December 27, 1988
    Date of Patent: February 20, 1990
    Assignee: Prodeco S.p.A.
    Inventors: Mauro D'Elia, Angelo Romano