Patents by Inventor Ralph Landau

Ralph Landau 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).

  • Urea compositions and their methods of manufacture
    Patent number: 8158138
    Abstract: Urea compositions useful for treatment of dermatological conditions. The compositions, which are free from perceptible solids, may include at least about 50 wt-% urea, zinc pyrithione, and lactic acid, and may be formulated as a topical gel.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: April 17, 2012
    Assignee: Fougera Pharmaceuticals, Inc.
    Inventors: Ralph Landau, Dale R. Sanson, Amir Kamyar Jahani
  • Disposal unit
    Patent number: 6706089
    Abstract: The invention relates to a method and apparatus for separating toxic compounds from gaseous mixtures, and more particularly to a method and a portable apparatus for the continuous removal of fluorine and compounds thereof from gaseous mixtures.
    Type: Grant
    Filed: February 27, 1948
    Date of Patent: March 16, 2004
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Ralph Landau