Patents by Inventor Peter Alan Mason

Peter Alan Mason 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).

  • Polyester process and product
    Patent number: 4100142
    Abstract: A continuous process for producing high molecular weight polyester of fiber-forming quality is described. The process includes the direct esterification of a dicarboxylic acid with a glycol to yield a prepolymer mixture of ester and low molecular weight polyester condensable under conditions of elevated temperature and vacuum into polymer of high intrinsic viscosity.
    Type: Grant
    Filed: October 20, 1976
    Date of Patent: July 11, 1978
    Assignee: Fiber Industries, Inc.
    Inventors: Peter Schaefer, Peter Alan Mason, William Harold Yates