Patents by Inventor Piotr Swiatkowski

Piotr Swiatkowski 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).

  • Amidocarboxylic acids as flotation agents
    Patent number: 4612112
    Abstract: Amidocarboxylic acids containing a hydrophobic group on the nitrogen are used as flotation agents. They are particularly useful as collector agents in the separation of non-sulfide minerals from their gangues.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: September 16, 1986
    Assignee: Kenobel AB
    Inventor: Piotr Swiatkowski
  • Flotation collector composition and its use
    Patent number: 4514290
    Abstract: A flotation collector composition comprises a combination of fatty acids, amidocarboxylic acids or amidosulfonic acids and partial esters of phosphoric acid and alkoxylated alcohols. The collector composition is used for upgrading nonsulfide minerals containing alkaline earth metals by froth flotation. Minerals such as apatite, calcite, scheelite, fluorspar, magnesite and baryte can be separated from the gangues using the collector composition.
    Type: Grant
    Filed: March 1, 1983
    Date of Patent: April 30, 1985
    Assignee: KenoGard AB
    Inventors: Piotr Swiatkowski, Thomas Wiklund