Patents by Inventor Paul S. Han

Paul S. Han 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).

  • Hair dryer
    Patent number: 4196343
    Abstract: A hair dryer of the hand-held variety has infinitely variable temperature and fan speed control. The fan speed control is trigger operated by the index finger while the heat control is thumbwheel actuated by the thumb. Neither control, once set, requires any further action such as holding in place to maintain the desired setting. By location of the controls in this fashion, surprisingly easy and efficient one-handed overall control of the hair dryer is possible.
    Type: Grant
    Filed: March 2, 1978
    Date of Patent: April 1, 1980
    Assignee: C.A.H., Inc.
    Inventor: Paul S. Han
  • Hair dryer
    Patent number: D255722
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: July 1, 1980
    Inventors: Sung Jae Shin, John W. Christensen, Paul S. Han