Patents by Inventor Derick L. Kaspar

Derick L. Kaspar 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).

  • Removal of silica from water soluble compounds by nanofiltration and reverse phase chromatography
    Patent number: 8420857
    Abstract: A process for separating soluble silica species such as monomeric silicic acid (or monosilicic acid) and low molecular weight soluble polymeric silica from impure water soluble compounds by membrane nanofiltration is provided. A process for separating soluble silica species and colloidal silica from impure water soluble compounds by reverse phase liquid chromatography is also provided.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: April 16, 2013
    Assignee: Mallinckrodt LLC
    Inventors: Allan R. Bailey, David H. White, Derick L. Kaspar, Robert E. Vandas, Michael J. Gentilcore, Hung V. Nguyen, Anna K. Fukunaga
  • Removal of Silica from Water Soluble Compounds by Nanofiltration and Reverse Phase Chromatography
    Publication number: 20110065959
    Abstract: A process for separating soluble silica species such as monomeric silicic acid (or monosilicic acid) and low molecular weight soluble polymeric silica from impure water soluble compounds by membrane nanofiltration is provided. A process for separating soluble silica species and colloidal silica from impure water soluble compounds by reverse phase liquid chromatography is also provided.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 17, 2011
    Inventors: Allan R. Bailey, David H. White, Derick L. Kaspar, Robert E. Vandas, Michael J. Gentilcore, Hung V. Nguyen, Anna K. Fukunaga