Patents by Inventor Peter N. Christensen

Peter N. Christensen 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).

  • Applicator for applying liquids to hair-covered skin
    Patent number: 6539949
    Abstract: A device for applying a thin, even layer of a liquid medicament to the scalp or other hair-covered skin surface while minimizing the amount of liquid wetting the hair is disclosed. The device includes a liquid reservoir and an applicator body having at least one downwardly extending tooth, each tooth having an internal fluid channel in communication with the reservoir, and having orifice ports adjacent to but above the tooth end. Metered doses of liquid are delivered to the orifice ports by operation of a manually operated pump or other fluid transport means.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: April 1, 2003
    Inventor: Peter N. Christensen
  • Applicator for applying liquids to hair-covered skin
    Publication number: 20020139383
    Abstract: A device for applying a thin, even layer of a liquid medicament to the scalp or other hair-covered skin surface while minimizing the amount of liquid wetting the hair is disclosed. The device includes a liquid reservoir and an applicator body having at least one downwardly extending tooth, each tooth having an internal fluid channel in communication with the reservoir, and having orifice ports adjacent to but above the tooth end. Metered doses of liquid are delivered to the orifice ports by operation of a manually operated pump or other fluid transport means.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 3, 2002
    Inventor: Peter N. Christensen