Patents by Inventor Peter Spizzirri

Peter Spizzirri 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).

  • Dual surfactant digester additive composition and a method for enhancing the pulping of wood chips using the same
    Patent number: 11970816
    Abstract: In general, the present invention is directed to a method of cooking wood in a cooking liquor medium. The method comprises a step of providing wood to a treatment vessel and contacting the wood with a digester additive composition. The composition comprises a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof. Additionally, according to another embodiment, the present invention is directed to a digester additive composition comprising a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: April 30, 2024
    Assignee: ChemStone, Inc.
    Inventors: Michael M. Blackstone, Peter Spizzirri
  • Dual Surfactant Digester Additive Composition and a Method for Enhancing the Pulping of Wood Chips Using the Same
    Publication number: 20210372048
    Abstract: In general, the present invention is directed to a method of cooking wood in a cooking liquor medium. The method comprises a step of providing wood to a treatment vessel and contacting the wood with a digester additive composition. The composition comprises a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof. Additionally, according to another embodiment, the present invention is directed to a digester additive composition comprising a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Inventors: Michael M. Blackstone, Peter Spizzirri
  • Dual surfactant digester additive composition and a method for enhancing the pulping of wood chips using the same
    Patent number: 11091875
    Abstract: In general, the present invention is directed to a method of cooking wood in a cooking liquor medium. The method comprises a step of providing wood to a treatment vessel and contacting the wood with a digester additive composition. The composition comprises a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof. Additionally, according to another embodiment, the present invention is directed to a digester additive composition comprising a first surfactant comprising an anionic surfactant, a derivative thereof, a salt thereof, or any combination thereof and a second surfactant comprising a polyoxyalkylene glycol or a derivative thereof.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: August 17, 2021
    Assignee: ChemStone, Inc.
    Inventors: Michael M. Blackstone, Peter Spizzirri