Patents by Inventor Thomas N. Sargent

Thomas N. Sargent 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).

  • Anionic phthalic acid ester compounds and stain resistant compounds
    Patent number: 7025794
    Abstract: This invention relates to compounds of formula: wherein A is an unsaturated alkylene moiety; B the residue of a polyol wherein one hydroxyl moiety is esterified with one carboxyl moiety of the phthalic acid moiety; D is the residue of a polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the phthalic acid moiety, and another hydroxyl moiety is esterified with one carboxyl moiety of the unsaturated alkylene moiety; E is the residue of polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the unsaturated alkylene moiety; and M is a cation. The compounds can be used alone, or polymerized, or polymerized and combined with other polymers, to form effective stain and soil repellent compositions.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: April 11, 2006
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, Thomas N. Sargent
  • Anionic phthalic acid ester compounds and stain resistant compositions
    Patent number: 6860905
    Abstract: This invention relates to compounds of formula: wherein A is an unsaturated alkylene moiety; B the residue of a polyol wherein one hydroxyl moiety is esterified with one carboxyl moiety of the phthalic acid moiety; D is the residue of a polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the phthalic acid moiety, and another hydroxyl moiety is esterified with one carboxyl moiety of the unsaturated alkylene moiety; E is the residue of polyol wherein one hydroxyl moiety is esterified with another carboxyl moiety of the unsaturated alkylene moiety; and M is a cation. The compounds can be used alone, or polymerized, or polymerized and combined with other polymers, to form effective stain and soil repellent compositions.
    Type: Grant
    Filed: October 1, 2002
    Date of Patent: March 1, 2005
    Assignee: Peach State Labs, Inc.
    Inventors: Michael S. Williams, Thomas N. Sargent
  • Anionic phthalic acid ester compounds and stain resistant compositions
    Publication number: 20040060121
    Abstract: This invention relates to compounds of formula: 1
    Type: Application
    Filed: October 1, 2002
    Publication date: April 1, 2004
    Inventors: Michael S. Williams, Thomas N. Sargent