Patents by Inventor Maria R. Pretzer

Maria R. Pretzer 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).

  • Personal care compositions having improved compatibility and providing improved sun protection
    Patent number: 8298517
    Abstract: Personal care composition having improved compatibility and providing improved sun protection are obtained by including a liquid silicone resin having greater than 50 mole percent Me3SiO1/2 and PrSiC3/2 units, where Me is methyl and Pr is propyl in the composition. If desired to enable additional compatibility of ingredients comprising the personal care composition, the liquid silicone resin can also contain PhSiO3/2 or Ph2SiO2/2 units, where Ph is phenyl, or a mixture thereof.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: October 30, 2012
    Assignee: Dow Corning Corporation
    Inventors: John Bernard Horstman, Douglas W. King, Paul W. Pretzer, Randall Schmidt, Gary Wieber, Tina Leaym, Maria R. Pretzer
  • Personal Care Compositions Having Improved Compatibility and Providing Improved Sun Protection
    Publication number: 20110110873
    Abstract: Personal care composition having improved compatibility and providing improved sun protection are obtained by including a liquid silicone resin having greater than 50 mole percent Me3SiO1/2 and PrSiC3/2 units, where Me is methyl and Pr is propyl in the composition. If desired to enable additional compatibility of ingredients comprising the personal care composition, the liquid silicone resin can also contain PhSiO3/2 or Ph2SiO2/2 units, where Ph is phenyl, or a mixture thereof.
    Type: Application
    Filed: July 6, 2009
    Publication date: May 12, 2011
    Applicant: DOW CORNING CORPORATION
    Inventors: John Bernard Horstman, Douglas W. King, Paul W. Pretzer, Randall Schmidt, Gary Wieber, Tina Leaym, Maria R. Pretzer