Patents by Inventor Hugh McIntyre Smith

Hugh McIntyre Smith 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).

  • Cationic polyvinyl alcohol-containing compositions
    Patent number: 7144946
    Abstract: Compositions including from about 1% to about 30% by weight of cationic polyvinyl alcohol graft copolymer in an aqueous solution, pigment, and other binding agents are useful in coatings for ink jet printing of paper, textile and plastic substrates, and also as wet end additives for papermaking. The polyvinyl alcohol has a weight average molecular weight between about 13,000 and about 140,000 and is between about 86 and 100 mole % hydrolyzed.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: December 5, 2006
    Inventors: Hugh McIntyre Smith, William Clary Floyd
  • Cationic polyvinyl alcohol-containing compositions
    Publication number: 20040122151
    Abstract: Compositions including from about 1% to about 30% by weight of cationic polyvinyl alcohol graft copolymer in an aqueous solution, pigment, and other binding agents are useful in coatings for ink jet printing of paper, textile and plastic substrates, and also as wet end additives for papermaking. The polyvinyl alcohol has a weight average molecular weight between about 13,000 and about 140,000 and is between about 86 and 100 mole % hydrolyzed.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 24, 2004
    Inventors: Hugh McIntyre Smith, William Clary Floyd