Patents by Inventor Shane Cyr

Shane Cyr 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).

  • Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems
    Patent number: 8771469
    Abstract: This invention relates to resins useful for drainage in papermaking and the process of making paper using the resins. In particular the invention relates to glyoxalated copolymers of acrylamide containing significant amounts of cationic comonomer.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: July 8, 2014
    Assignee: Hercules Incorporated
    Inventors: Shane Cyr, Henk Bakker, Willem Marinus Stevels, Ronald Richard Staib
  • Reactive Cationic Resins for Use as Dry and Wet Strength Agents in Sulfite Ion-Containing Papermaking Systems
    Publication number: 20110056640
    Abstract: This invention relates to resins useful for imparting strength to paper, the process of incorporating these resins into paper and paper produced containing the resins. In particular the invention relates to resins useful for imparting dry-strength and wet strength to paper under conditions of high sulfite ion concentrations.
    Type: Application
    Filed: November 8, 2010
    Publication date: March 10, 2011
    Inventors: Shane Cyr, Henk Bakker, Willem Marinus Stevels, Ronald Richard Staib
  • Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems
    Patent number: 7828934
    Abstract: This invention relates to resins useful for imparting strength to paper, the process of incorporating these resins into paper and the paper produced containing the resins. In particular the invention relates to resins useful for imparting dry-strength and wet-strength to paper under conditions of high sulfite ion concentrations.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: November 9, 2010
    Assignee: Hercules Incorporated
    Inventors: Shane Cyr, Henk Bakker, Willem Marinus Stevels, Ronald Richard Staib
  • Reactive cationic resins for use as dry and wet strength agents in sulfite ion-containing papermaking systems
    Publication number: 20060142535
    Abstract: This invention relates to resins useful for imparting strength to paper, the process of incorporating these resins into paper and the paper produced containing the resins. In particular the invention relates to resins useful for imparting dry-strength and wet-strength to paper under conditions of high sulfite ion concentrations.
    Type: Application
    Filed: December 15, 2005
    Publication date: June 29, 2006
    Inventors: Shane Cyr, Henk Bakker, Willem Stevels, Ronald Staib