Patents by Inventor Brian D. Curham

Brian D. Curham 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).

  • Polyglycerol antifoam agents in paper processing
    Patent number: 5429718
    Abstract: Polyglycerol esters have been found to be effective antifoam agents in aqueous systems employed in paper processing. Adjunct antifoam agents are not required. Best results are obtained with polyglycerol esters having a degree of glycerine polymerization in the range of 3 to 6 and an esterification range of 15 to 85%.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: July 4, 1995
    Assignee: Lonza Inc.
    Inventors: Nancy M. Morlino, Philip G. Sweeny, Brian D. Curham