Patents by Inventor Tim Feuerstack

Tim Feuerstack 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).

  • Polymer composite containing recycled carbon fibers
    Patent number: 11993707
    Abstract: A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.
    Type: Grant
    Filed: July 7, 2022
    Date of Patent: May 28, 2024
    Assignee: CELANESE SALES GERMANY GMBH
    Inventors: Dirk Zierer, Patrick Nickolay, Tim Feuerstack
  • Polymer Composite Containing Recycled Carbon Fibers
    Publication number: 20220332942
    Abstract: A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.
    Type: Application
    Filed: July 7, 2022
    Publication date: October 20, 2022
    Inventors: Dirk Zierer, Patrick Nickolay, Tim Feuerstack
  • Polymer composite containing recycled carbon fibers
    Patent number: 11384238
    Abstract: A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: July 12, 2022
    Assignee: Celanese Sales Germany GmbH
    Inventors: Dirk Zierer, Patrick Nickolay, Tim Feuerstack
  • Polymer Composite Containing Recycled Carbon Fibers
    Publication number: 20190241735
    Abstract: A polymer composition is described well suited for being combined with relatively short fibers. The fibers, for instance, can have a mean fiber length of less than 1,000 microns, such as less than 700 microns, such as less than 500 microns. The polymer formulation allows for intimate mixing with the fibers without having to use a sizing agent. In one embodiment, the composition contains a polybutylene terephthalate polymer combined with a thermoplastic polymer having lower crystallinity.
    Type: Application
    Filed: February 8, 2019
    Publication date: August 8, 2019
    Inventors: Dirk Zierer, Patrick Nickolay, Tim Feuerstack