Patents by Inventor Chungfah H. Ho

Chungfah H. Ho 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).

  • Oligomer pellets of ethylene terephthalate
    Patent number: 4436782
    Abstract: Preparation of free-flowing pellets of ethylene terephthalate oligomer by water quenching droplets of molten oligomer.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: March 13, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Chungfah H. Ho
  • Oligomer pellets of ethylene terephthalate
    Patent number: 4340550
    Abstract: Preparation of free-flowing pellets of ethylene terephthalate oligomer by water quenching droplets of molten oligomer.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: July 20, 1982
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Chungfah H. Ho