Patents by Inventor Dale C. Lester

Dale C. Lester 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).

  • PREPARATION OF POLYOLEFIN
    Publication number: 20150368377
    Abstract: Catalyst systems and methods for making and using the same are provided. The catalyst systems can include a plurality of silica particles and a metallocene catalyst and an activator supported on the plurality of silica particles. The polymerization catalysts have a particle size distribution in which about 10% of the particles have a size less than about 17 to about 23 micrometers, about 50% of the particles have a size less than about 40 to about 45 micrometers, and about 90% of the particles have a size less than about 72 to about 77 micrometers.
    Type: Application
    Filed: November 20, 2013
    Publication date: December 24, 2015
    Applicant: UNIVATION TECHNOLOGIES, LLC
    Inventors: Dale C. Lester, Kevin J. Cann, Phuong A. Cao, Mark G. Goode, Abarajith S. Hari, David F. Hussein, Wesley R. Mariott, John H. Moorhouse, Richard B. Pannell, Bruce J. Savatsky, Daniel P. Zilker, JR.