Patents by Inventor David A. Ruehle

David A. Ruehle 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).

  • Blends of biorenewable polyamides and methods of making the same
    Patent number: 9290658
    Abstract: The invention discloses a method to produce a blended polymer by mixing polyamide 11 and polyamide 6, 10. The method may be utilize melt mixing or may utilize blended solutions. The invention also includes a blended polymer, wherein the blended polymer is produced from polyamide 11 and polyamide 6,10.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 22, 2016
    Assignee: Colorado School of Mines
    Inventors: John R. Dorgan, David A. Ruehle
  • BLENDS OF BIORENEWABLE POLYAMIDES AND METHODS OF MAKING THE SAME
    Publication number: 20150038652
    Abstract: The invention discloses a method to produce a blended polymer by mixing polyamide 11 and polyamide 6, 10. The method may be utilize melt mixing or may utilize blended solutions. The invention also includes a blended polymer, wherein the blended polymer is produced from polyamide 11 and polyamide 6,10.
    Type: Application
    Filed: July 31, 2014
    Publication date: February 5, 2015
    Inventors: John R. Dorgan, David A. Ruehle