Patents by Inventor Helmut Hegmann

Helmut Hegmann 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).

  • Device and method for continuously producing emulsions or dispersions
    Patent number: 7775704
    Abstract: A device for continuously producing emulsions or dispersions while excluding air comprises a mixing vessel, which is closed on all sides and which has supply tubes and discharge tubes for introducing and discharging fluid substances or compositions, and also an impeller, which permits an agitating input into the emulsion or dispersion without generating cavitation forces and without high-pressure homogenization. For preparing the cosmetic emulsions of the invention, as well, emulsifiers are generally used.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: August 17, 2010
    Assignee: Kemira Oyj
    Inventors: Gerd Dahms, Helmut Hegmann
  • Device and method for continuously producing emulsions or dispersions
    Publication number: 20070025177
    Abstract: A device for continuously producing emulsions or dispersions while excluding air comprises a mixing vessel, which is closed on all sides and which has supply tubes and discharge tubes for introducing and discharging fluid substances or compositions, and also an impeller, which permits an agitating input into the emulsion or dispersion without generating cavitation forces and without high-pressure homogenization. For preparing the cosmetic emulsions of the invention, as well, emulsifiers are generally used.
    Type: Application
    Filed: March 21, 2003
    Publication date: February 1, 2007
    Applicant: IFAC GmbH & Co. KG Institut fur Angewandte Colloidtechnologie
    Inventors: Gerd Dahms, Helmut Hegmann