Patents by Inventor Dirk AMTOWER

Dirk AMTOWER 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).

  • Cellulose acetate tow with high dpf and low titanium dioxide content
    Patent number: 11814507
    Abstract: Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: November 14, 2023
    Assignee: ACETATE INTERNATIONAL LLC
    Inventors: Susan Blankenship, Dirk Amtower, Michael Combs, Christopher M. Bundren, Karen Zazzara
  • Cellulose acetate tow with low DPF and low titanium dioxide content
    Patent number: 11774419
    Abstract: Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: October 3, 2023
    Assignee: ACETATE INTERNATIONAL LLC
    Inventors: Susan Blankenship, Dirk Amtower, Michael Combs, Christopher M. Bundren, Karen Zazzara
  • CELLULOSE ACETATE TOW WITH LOW DPF AND LOW TITANIUM DIOXIDE CONTENT
    Publication number: 20210063364
    Abstract: Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.
    Type: Application
    Filed: April 22, 2020
    Publication date: March 4, 2021
    Inventors: Susan BLANKENSHIP, Dirk AMTOWER, Michael COMBS, Christopher M. BUNDREN, Karen ZAZZARA
  • CELLULOSE ACETATE TOW WITH HIGH DPF AND LOW TITANIUM DIOXIDE CONTENT
    Publication number: 20210061977
    Abstract: Provided herein are cellulose acetate tow bands having less than 0.1 wt. % titanium dioxide, wherein the content of titanium dioxide is measured by ashing and/or by titanium particle count density. Also provided herein is a method of measuring the titanium dioxide content of cellulose acetate tow by ashing. Also provided herein is a method for measuring the color of cellulose acetate tow.
    Type: Application
    Filed: April 22, 2020
    Publication date: March 4, 2021
    Inventors: Susan BLANKENSHIP, Dirk AMTOWER, Michael COMBS, Christopher M. BUNDREN, Karen ZAZZARA