Patents by Inventor Sam X. Yang

Sam X. Yang 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).

  • High level oxygen air conditioning
    Patent number: 5890366
    Abstract: This invention relates to a process for Heating, Ventilating and Air Conditioning (HVAC) applications. In particular, this invention relates to a method for supplying oxygen concentrated air to an indoor air environment, which is termed as High Level Oxygen Air Conditioning (HLOAC): The High Level Oxygen Air Conditioning (HLOAC) primarily comprises three steps: (1). Introducing air stream to an oxygen and nitrogen separation device; (2). Separating nitrogen and oxygen in air to obtain a concentrated oxygen stream; (3). Introducing said concentrated oxygen stream into the indoor environment.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: April 6, 1999
    Inventor: Sam X. Yang