Patents by Inventor Henry HL Chan

Henry HL Chan 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 and apparatus for cryogenic treatment of skin tissue
    Patent number: 9855166
    Abstract: Cosmetic method and apparatus are provided that can provide cooling and/or freezing of skin tissue proximal to the skin surface to generate an appearance of lightening or reduced pigmentation in the skin. The skin can be cooled to a temperature of less than about ?5 degrees Celsius for a duration of about one minute or less, using a cooled surface that is at least 3 cm in width. A cooling arrangement can be provided to provide controlled heat removal from the skin tissue being treated. A sensor can optionally be provided to detect freezing of tissue proximal to the cooled surface.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: January 2, 2018
    Assignee: THE GENERAL HOSPITAL CORPORATION
    Inventors: Richard Rox Anderson, Dieter Manstein, Henry HL Chan, Joseph Ting
  • METHOD AND APPARATUS FOR CRYOGENIC TREATMENT OF SKIN TISSUE
    Publication number: 20140303697
    Abstract: Cosmetic method and apparatus are provided that can provide cooling and/or freezing of skin tissue proximal to the skin surface to generate an appearance of lightening or reduced pigmentation in the skin. The skin can be cooled to a temperature of less than about ?5 degrees Celsius for a duration of about one minute or less, using a plurality of cooled contact surfaces, each having a width between about 2 mm and about 20 mm. A cooling arrangement can be provided to provide controlled heat removal from the skin tissue being treated. A sensor can optionally be provided to detect freezing of tissue proximal to the cooled surfaces.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 9, 2014
    Applicant: The General Hospital Corporation
    Inventors: Richard Rox Anderson, Dieter Manstein, Henry HL Chan, Joseph Ting
  • METHOD AND APPARATUS FOR CRYOGENIC TREATMENT OF SKIN TISSUE
    Publication number: 20140303696
    Abstract: Cosmetic method and apparatus are provided that can provide cooling and/or freezing of skin tissue proximal to the skin surface to generate an appearance of lightening or reduced pigmentation in the skin. The skin can be cooled to a temperature of less than about ?5 degrees Celsius for a duration of about one minute or less, using a cooled surface that is at least 3 cm in width. A cooling arrangement can be provided to provide controlled heat removal from the skin tissue being treated. A sensor can optionally be provided to detect freezing of tissue proximal to the cooled surface.
    Type: Application
    Filed: November 16, 2012
    Publication date: October 9, 2014
    Applicant: The General Hospital Corporation
    Inventors: Richard Rox Anderson, Dieter Manstein, Henry HL Chan, Joseph Ting