Patents by Inventor Paul C. Tutschek

Paul C. Tutschek 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).

  • Softgel-compatible composition containing retinol
    Patent number: 6228894
    Abstract: A softgel-compatible composition containing retinol comprises retinol-impregnated microparticles. The composition may include an optionally thickened silicone oil, or may include an emulsion comprising a silicone oil. Ascorbic acid may be present as ascorbic acid-impregnated microparticles and/or within the emulsion. Such compositions are compatible with softgels, and may also be used in other dispensing containers, such as sachets, tubes, and airless pumps.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: May 8, 2001
    Assignees: Enhanced Derm Technologies, Inc., R. P. Scherer Corporation
    Inventors: Marie A. Rinaldi, Subhash J. Saxena, Paul C. Tutschek
  • Softgel formulation containing retinol
    Patent number: 5891470
    Abstract: A softgel formulation containing retinol comprises a soft gelatin shell and a fill material within that shell containing retinol-impregnated microparticles. The fill material may be an optionally thickened silicone oil, or may be an emulsion comprising a silicone oil. Ascorbic acid may be present as ascorbic acid-impregnated microparticles and/or within the emulsion.
    Type: Grant
    Filed: April 17, 1998
    Date of Patent: April 6, 1999
    Assignees: Advanced Polymer Systems, Inc., R.P. Scherer Corporation
    Inventors: Marie A. Rinaldi, Subhash J. Saxena, Paul C. Tutschek