Patents by Inventor Reiner Welters

Reiner Welters 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).

  • U.V. Absorbing cosmetic compositions
    Patent number: 4489057
    Abstract: Cosmetic compositions containing dibenzoylmethane compounds of the formula ##STR1## wherein R and R.sup.1 are straight-chain or branched alkyl of 1-8 carbon atoms, n an integer from 0-3 and n' an integer from 1-3, dissolved in the fatty components of said composition have superior sun-protection efficiency.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: December 18, 1984
    Assignee: Merck Patent Gesellschaft mit beschraenkter Haftung
    Inventors: Reiner Welters, Juergen Gehlhaus, Gernot Moeschl