Patents by Inventor Pan F. Rong

Pan F. Rong 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 removing spatters from a pipeline
    Patent number: 4559085
    Abstract: A method for installing a pipeline having a plurality of pipes, including each pipe having at least one handhole in the wall near at least one of its ends, and a threaded cap for closing the handhole, whereby, when a pipe is joined to another pipe by welding, spatters formed at or near the welded joint can be removed by hand through the handhole.
    Type: Grant
    Filed: June 18, 1984
    Date of Patent: December 17, 1985
    Inventors: Eddy Y. L. Liu, Pan F. Rong