Patents by Inventor John Charles Harrington, IV

John Charles Harrington, IV 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).

  • Method of increasing efficiency of chemical additives in a papermaking system
    Patent number: 11926966
    Abstract: A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: March 12, 2024
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit Edward Sharoyan, John Charles Harrington, IV, Valmir Frauches de Freitas, Flávio Henrique Gazzotti Bueno de Oliveira
  • METHOD OF INCREASING EFFICIENCY OF CHEMICAL ADDITIVES IN A PAPERMARKING SYSTEMS
    Publication number: 20210047780
    Abstract: A method of increasing chemical efficiency of chemical additives in a papermaking system includes the steps of providing thick stock pulp comprising soluble lignin, process water, and at least about 2% by weight of cellulosic fiber based on total weight of thick stock pulp, and adding at least one organic polymer to the thick stock pulp to reduce the amount of soluble lignin therein. The organic polymer is chosen from cationic polymers, non-ionic polymers and combinations thereof.
    Type: Application
    Filed: October 30, 2020
    Publication date: February 18, 2021
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Davit Edward Sharoyan, John Charles Harrington, IV, Valmir Frauches de Freitas, Flávio Henrique Gazzotti Bueno de Oliveira