Patents by Inventor Brian Paul Askey

Brian Paul Askey 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 of making carbon fibers from lignin
    Patent number: 9683313
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: June 20, 2017
    Assignee: GrafTech International Holdings Inc.
    Inventors: Ching-Feng Chang, Bassam Alnasleh, Omer Gul, Robert E Miller, Andrew Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Carbon Fibers Derived from Lignin
    Publication number: 20150233023
    Abstract: A method of making a carbon fiber includes heat treating a lignin precursor absent an active ingredient in an inert atmosphere to raise the glass transition temperature (Tg) of the precursor by at least five (5%) percent, forming a lignin precursor having an increased Tg (High Tg Lignin). The High Tg Lignin can be spun into a fiber. The fiber may then be stabilized to form a thermoset fiber. The time period for stabilizing the fiber is less than one hundred (100) hours.
    Type: Application
    Filed: August 20, 2013
    Publication date: August 20, 2015
    Inventors: Ching-Feng Chang, Bassam Kamal Alnasleh, Omer Gul, Robert E Miller, Andrew Adam Hausner, Orest L Adrianowycz, Chong Chen, Brian Paul Askey
  • Method and Apparatus for Producing Carbon Fiber
    Publication number: 20130277875
    Abstract: A carbon fiber centrifugal head includes an interior mechanism that at least partially controls flow of precursor material to exterior holes of the head during spinning.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 24, 2013
    Inventors: Chong Chen, James Joseph Pavlisin, Brian Paul Askey