Patents by Inventor Peter Pei-Su Hung

Peter Pei-Su Hung 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).

  • Patent number: 6390326
    Abstract: A pressure vessel includes a body with a closed end and a neck extends from the other end of the body and encloses an opening. A metal collar is mounted to the neck. A valve device is engaged with an inner periphery of the neck and has a peripheral wall extending through the opening. The peripheral wall is folded outward to wrap and position the collar.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 21, 2002
    Inventor: Peter Pei-Su Hung