Patents by Inventor Edward D. LaChapelle

Edward D. LaChapelle 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).

  • Hollow fiber annealing
    Patent number: 4900502
    Abstract: A process for improving both the internal burst strengths and gas and water permeabilities of certain microporous polymeric hollow fibers useful in RO applications comprises a wet annealing process for certain such fibers.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: February 13, 1990
    Assignee: Bend Research, Inc.
    Inventors: Walter C. Babcock, Scott B. McCray, Edward D. LaChapelle, Kris A. Krichko