Patents by Inventor Michael W. Weiner

Michael W. Weiner 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).

  • Stable supersaturated solutions of sparingly soluble salts
    Patent number: 4292227
    Abstract: Method and compositions are provided concerning stable supersaturated aqueous solutions of sparingly soluble inorganic salts. The method involves exceeding the solubility level of a sparingly soluable inorganic salt in water at ambient temperatures in the presence of polyanionic polyelectrolyte having a molecular weight of at least about 900 daltons and an ionic equivalent weight of not greater than about 65 and at least five ionizable groups per molecule. The solubility level may be exceeded by cooling a saturated solution of the sparingly soluble salt, preparing the sparingly soluble salt in situ, or adding a soluble salt having a common ion with the sparingly soluble salt to a concentrated or saturated solution of the sparingly soluble salt.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: September 29, 1981
    Assignee: Board of Trustees of Leland Stanford Junior University
    Inventors: Alan S. Michaels, Michael W. Weiner, Hemant Jalan