Patents by Inventor Gary Headrick

Gary Headrick 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).

  • Paper making processes and system using enzyme and cationic coagulant combination
    Patent number: 8454798
    Abstract: A method is described for making paper or paper board by applying a composition containing enzyme and cationic coagulant to papermaking pulp prior to paper forming to preferably improve drainage, retention, or both. Sheets of pulp from which paper or paperboard products are made with the method can exhibit excellent drainage, excellent retention of pulp fines, or both. The method also can be applied to other pulp treatments, such as waste water treatments. A system for making such treatments of paper furnish is also provided.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: June 4, 2013
    Assignee: Buckman Laboratories International, Inc.
    Inventors: Weiping Ban, Gary Headrick, Rosa M. Covarrubias
  • Paper Making Processes and System Using Enzyme and Cationic Coagulant Combination
    Publication number: 20110253333
    Abstract: A method is described for making paper or paper board by applying a composition containing enzyme and cationic coagulant to papermaking pulp prior to paper forming to preferably improve drainage, retention, or both. Sheets of pulp from which paper or paperboard products are made with the method can exhibit excellent drainage, excellent retention of pulp fines, or both. The method also can be applied to other pulp treatments, such as waste water treatments. A system for making such treatments of paper furnish is also provided.
    Type: Application
    Filed: April 14, 2011
    Publication date: October 20, 2011
    Applicant: BUCKMAN LABORATORIES INTERNATIONAL, INC.
    Inventors: Weiping Ban, Gary Headrick, Rosa M. Covarrubias
  • Papermaking processes using coagulants and optical brighteners
    Publication number: 20070169903
    Abstract: A method of making paper or paperboard is described, which includes introducing at least one charged starch, preferably having a degree of substitution greater than 0.045, and at least one optical brightening agent to a papermaking pulp and then forming the pulp into paper or paperboard. The present invention further describes methods of improving optical brightener performance.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 26, 2007
    Inventors: Rosa M. Covarrubias, Gary A. Headrick, Alan B. Rosenberg