Patents by Inventor Sten Engblom

Sten Engblom 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).

  • Method for improving vermiculite's intake of ammonium ions, absorption material, its uses and method of removing ammonium from environment
    Patent number: 7927039
    Abstract: The invention relates to a method for improving vermiculite's intake of ammonium, in which method heating of the crude vermiculite is conducted to a temperature where vermiculite's third dehydration step takes place, the temperature being lower than the temperature where vermiculite's fourth dehydration/dehydroxylation step takes place. The invention relates also to use of the obtained vermiculite and to an absorption material, comprising vermiculite material and additives, where at least 50% of the vermiculite material comprises vermiculite, which has undergone the third dehydration step but not the fourth dehydration/dehydroxylation step. The invention relates also to use of thermally treated and ammonium doped vermiculite as fertilizer/soil conditioner.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: April 19, 2011
    Assignees: Turun Yliopisto, Svenska Osterbottens Forbund for utbildning och kultur
    Inventors: Olav Eklund, Vesa Tokopainen, Alexey Shebanov, Nina Åkerback, Sten Engblom
  • METHOD FOR IMPROVING VERMICULITE'S INTAKE OF AMMONIUM IONS, ABSORPTION MATERIAL, ITS USES AND METHOD OF REMOVING AMMONIUM FROM ENVIRONMENT
    Publication number: 20100132423
    Abstract: The invention relates to a method for improving vermiculite's intake of ammonium, in which method heating of the crude vermiculite is conducted to a temperature where vermiculite's third dehydration step takes place, the temperature being lower than the temperature where vermiculite's fourth dehydration/dehydroxylation step takes place. The invention relates also to use of the obtained vermiculite and to an absorption material, comprising vermiculite material and additives, where at least 50% of the vermiculite material comprises vermiculite, which has undergone the third dehydration step but not the fourth dehydration/dehydroxylation step. The invention relates also to use of thermally treated and ammonium doped vermiculite as fertilizer/soil conditioner.
    Type: Application
    Filed: June 30, 2006
    Publication date: June 3, 2010
    Applicants: TURUN YLIOPISTO, SVENSKA YRKESHOGSKOLAN
    Inventors: Olav Eklund, Vesa Tokopainen, Alexey Shebanov, Nina Åkerbach, Sten Engblom