Patents by Inventor Gary R. Chipman

Gary R. Chipman 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).

  • Polybutylene terephthalate
    Patent number: 4014858
    Abstract: Reaction of terephthalic acid and butane diol using a tetravalent tin catalyst having the organo-to-tin linkage.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: March 29, 1977
    Assignee: Standard Oil Company
    Inventors: Gary R. Chipman, Michael G. Henk, Jacob A. De Boer, Eli W. Blaha
  • Solid state polymerization
    Patent number: 4008206
    Abstract: Solid state polymerization of relatively low I.V. polyester using an organic crystalline anti-stick agent having a melting point of at least 230.degree. C.
    Type: Grant
    Filed: October 2, 1974
    Date of Patent: February 15, 1977
    Assignee: Standard Oil Company (Indiana)
    Inventors: Gary R. Chipman, Ronald E. Bockrath