Patents by Inventor Eva-Maria Wiener

Eva-Maria Wiener 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).

  • Process for preparing fine emulsions
    Patent number: 6586479
    Abstract: The invention relates to fine emulsions comprising at least one W/O emulsifier and at least one hydrophilic component, and to a process for their preparation. The fine emulsions are obtainable by converting a W/O preemulsion comprising at least one W/O emulsifier into an O/W fine emulsion by adding at least one hydrophilic component and, where appropriate, changing the temperature. Suitable W/O emulsifiers are preferably sorbitol esters. The fine emulsions are preferably spray emulsions for cosmetic and pharmaceutical applications.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: July 1, 2003
    Assignee: Clariant GmbH
    Inventors: Dennis Miller, Torsten Henning, Wiebke Johannpeter, Eva-Maria Wiener
  • Fine emulsions
    Publication number: 20020072544
    Abstract: The invention relates to fine emulsions comprising at least one W/O emulsifier and at least one hydrophilic component, and to a process for their preparation. The fine emulsions are obtainable by converting a W/O preemulsion comprising at least one W/O emulsifier into an O/W fine emulsion by adding at least one hydrophilic component and, where appropriate, changing the temperature. Suitable W/O emulsifiers are preferably sorbitol esters. The fine emulsions are preferably spray emulsions for cosmetic and pharmaceutical applications.
    Type: Application
    Filed: July 20, 2001
    Publication date: June 13, 2002
    Applicant: Clariant GmbH
    Inventors: Dennis Miller, Torsten Henning, Wiebke Johannpeter, Eva-Maria Wiener
  • Aqueous liquids comprising a surfactant and an acetal
    Publication number: 20020061827
    Abstract: Aqueous liquids comprising a surfactant and an acetal. It has now surprisingly been found that readily biodegradable acetals are outstandingly suitable as solubility promoters in microemulsions and liquid-crystalline phases. On the basis of homogeneous single-phase liquids consisting of acetal and surfactant, it is also possible to prepare formulations without the addition of cosurfactants.
    Type: Application
    Filed: August 30, 2001
    Publication date: May 23, 2002
    Applicant: Clariant GmbH
    Inventors: Dennis Miller, Franz Xaver Scherl, Werner Skrypzak, Eva-Maria Wiener