Patents by Inventor Gary Lee Hillebrenner

Gary Lee Hillebrenner 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).

  • Narrow particle size distribution calcium carbonate and methods of making same
    Patent number: 9193602
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: November 24, 2015
    Assignee: Huber Carbonates, LLC
    Inventors: Lane George Shaw, Gary Lee Hillebrenner
  • Narrow Particle Size Distribution Calcium Carbonate and Methods of Making Same
    Publication number: 20150083831
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Application
    Filed: December 5, 2014
    Publication date: March 26, 2015
    Inventors: Lane George Shaw, Gary Lee Hillebrenner
  • Narrow particle size distribution calcium carbonate and methods of making same
    Patent number: 8987363
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: March 24, 2015
    Assignee: J.M. Huber Corporation
    Inventors: Lane George Shaw, Gary Lee Hillebrenner
  • NARROW PARTICLE SIZE DISTRIBUTION CALCIUM CARBONATE AND METHODS OF MAKING SAME
    Publication number: 20120264865
    Abstract: Calcium carbonate particles having very narrow particle sizes with a controlled D98 and minimal ultrafines (very small particles) are described. The particles are prepared by grinding a feedstock in a centrifugal grinding mill, which utilizes very high centrifugal forces to impact the particles with each other or grinding media.
    Type: Application
    Filed: March 20, 2012
    Publication date: October 18, 2012
    Inventors: Lane George Shaw, Gary Lee Hillebrenner