Patents by Inventor Alan B. Rosenberg

Alan B. Rosenberg 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).

  • 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