Patents by Inventor Robert Richard Reen

Robert Richard Reen 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).

  • Method of preparing polyester powder
    Patent number: 3935169
    Abstract: An improved method of preparing a polyester powder is disclosed wherein a polyester resin is dissolved in benzyl alcohol and the powder is subsequently precipitated from said solution by the use of a suitable diluent.
    Type: Grant
    Filed: June 28, 1974
    Date of Patent: January 27, 1976
    Assignee: ICI United States Inc.
    Inventor: Robert Richard Reen