Patents by Inventor John W. Stoddard

John W. Stoddard 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).

  • Phosphorus-containing polymers and fibers formed therefrom
    Patent number: 5545833
    Abstract: A polymer including as integral parts of polymer chain, amide groups of the formula ##STR1## and phosphinic acid-salt groups of the formula ##STR2## wherein a and b are both greater than or equal to 2 and M is selected from the group of metal cations where n=1 or n=2.The polymer of the present invention is particularly useful in forming stain-resistant fibers for carpet pile.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: August 13, 1996
    Assignee: Monsanto Company
    Inventor: John W. Stoddard
  • Phosphorus-containing copolyamides and fibers thereof
    Patent number: 4092302
    Abstract: Copolyamides containing from 0.5 to 7.5 percent by weight of phosphorus as an integral part of their polymer chain are provided such as copolyamides prepared from adipic acid, hexamethylene diamine, and bis(.beta.-carboxyethyl)alkylphosphine oxide. Fibers prepared from these copolymers have permanent antistatic, moisture transport, moisture regain, and flame-resistant properties and are particularly useful in textile fiber applications such as in apparel, carpets and upholstery.
    Type: Grant
    Filed: March 3, 1977
    Date of Patent: May 30, 1978
    Assignee: Monsanto Company
    Inventors: Oscar A. Pickett, Jr., John W. Stoddard
  • Phosphorus-containing copolyamides and fibers thereof
    Patent number: 4032517
    Abstract: Copolyamides containing from 0.5 to 7.5% by weight of phosphorus as an integral part of their polymer chain are provided such as copolyamides prepared from adipic acid, hexamethylene diamine, and bis(.beta.-carboxyethyl)alkylphosphine oxide. Fibers prepared from these copolymers have permanent antistatic, moisture transport, moisture regain, and flame-resistant properties and are particularly useful in textile fiber applications such as in apparel, carpets and upholstery.
    Type: Grant
    Filed: July 22, 1975
    Date of Patent: June 28, 1977
    Assignee: Monsanto Company
    Inventors: Oscar A. Pickett, Jr., John W. Stoddard