Patents Represented by Attorney, Agent or Law Firm Steve J. Trzaska
  • Nanoscale organic UV filters
    Patent number: 6368577
    Abstract: A cosmetic or pharmaceutical composition used for blocking the penetration of ultraviolet radiation, the composition containing nanoscale organic UV filters having a mean diameter of from 10 to 300 nm.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: April 9, 2002
    Assignee: Cognis Deutschland GmbH
    Inventors: Christian Kropf, Hans Dolhaine, Thomas Foerster, Bernd Fabry
  • Pulping composition containing aminoalkoxylsilanes and a pulping process using the composition
    Patent number: 6123810
    Abstract: Enhanced removal of lignin and other extractives in a pulping process is achieved by contacting wood chips and the like with a liquid mixture comprised of white liquor and aminoalkoxylsilane and optionally, one or more nonionic and/or anionic surfactants.
    Type: Grant
    Filed: February 10, 1998
    Date of Patent: September 26, 2000
    Assignee: Henkel Corporation
    Inventor: Marie-Esther Saint Victor