Patents by Inventor Ute Voelkel

Ute Voelkel 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).

  • Dispersion which contains at least 2 types of particles
    Patent number: 7901502
    Abstract: Aqueous dispersions contain at least two chemically different particle types having a diameter on average of less than 100 ?m. The dispersions are resistant to sedimentation and gelling for long periods of time, and can be used for many purposes, such as the polishing of optical surfaces, and in paints and adhesives.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: March 8, 2011
    Assignee: Wacker Chemie AG
    Inventors: Herbert Barthel, Johann Doppelberger, Mario Heinemann, Torsten Gottschalk-Gaudig, Stephan Loskot, Ute Voelkel
  • Dispersion which contains at least 2 types of particles
    Publication number: 20050133766
    Abstract: Aqueous dispersions contain at least two chemically different particle types having a diameter on average of less than 100 ?m. The dispersions are resistant to sedimentation and gelling for long periods of time, and can be used for many purposes, such as the polishing of optical surfaces, and in paints and adhesives.
    Type: Application
    Filed: December 14, 2004
    Publication date: June 23, 2005
    Applicant: Wacker-Chemie GmbH
    Inventors: Herbert Barthel, Johann Doppelberger, Mario Heinemann, Torsten Gottschalk-Gaudig, Stephan Loskot, Ute Voelkel
  • Low-silanol silica
    Patent number: 6800413
    Abstract: A silylated silica having an SiOH density per nm2 of less than 0.6, based on the BET-method surface area (DIN 66131 and 66132), is prepared by silylating silica in a process where loading, reacting, and purifying are performed in separate steps.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: October 5, 2004
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Barthel, Mario Heinemann, Franz Grünwald, Helmut Maginot, Ute Völkel