Patents by Inventor Frank J. Sapienza, Jr.

Frank J. Sapienza, Jr. 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 for the preparation of halophthalic anhydrides
    Patent number: 5003088
    Abstract: Halophthalic anhydrides are prepared by reaction of chlorine with a saturated or partially saturated halophthalic anhydride at a temperature of 200.degree. to 500.degree. Celsius.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: March 26, 1991
    Assignee: Occidental Chemical Corporation
    Inventors: Ronald F. Spohn, Frank J. Sapienza, Jr., Arthur H. Morth