Patents by Inventor Mark Edward Ragsdale

Mark Edward Ragsdale 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).

  • Black colorant composition exhibiting low flairing
    Patent number: 5925150
    Abstract: A black colorant composition useful for coloring polyurethanes is provided having a red benzothiazole azo colorant which, when combined with a complementary blue and yellow colorant, exhibits low flairing.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: July 20, 1999
    Assignee: Milliken & Company
    Inventors: Mark Edward Ragsdale, David Jesse Moody, Eric B. Stephens
  • Black colorant composition exhibiting low flairing
    Patent number: 5731398
    Abstract: A black colorant composition useful for coloring polyurethanes is provided having a red benzothiazole azo colorant which, when combined with a complementary blue and yellow colorant, exhibits low flairing.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: March 24, 1998
    Assignee: Milliken Research Corporation
    Inventors: Mark Edward Ragsdale, David Jesse Moody, Eric B. Stephens