Patents by Inventor Oon T. Tan

Oon T. Tan 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 of treating pigmented lesions using pulsed irradiation
    Patent number: 5312395
    Abstract: A cutaneous pigmented lesion is treated by irradiation with laser light of between 345 and 600 nm and preferably about 500 nm wavelength. The fluence is between 1 and 10 J/Cm.sup.2 and preferably between 2 and 4 J/cm.sup.2 . The pulse duration is less than 1 .mu.sec and preferably less than 500 nsec. A 3 mm diameter spot is illuminated.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: May 17, 1994
    Assignees: Boston University, Candela Laser Corp.
    Inventors: Oon T. Tan, James C. Hsia, Horace Furumoto
  • Laser treatment method for removing pigement containing lesions from the skin of a living human
    Patent number: 5290273
    Abstract: A laser treatment method is provided which removes pigment containing lesions, both normal and abnormal medically, from the skin of a living human. The methodology comprises a carefully controlled irradiation of the chosen treatment site on the skin of a living human; avoids the creation of cosmetically disfiguring scars; and eliminates the typical hypopigmentation as well as the pitting and other changes in skin texture normally accompanying conventionally known laser treatment techniques.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: March 1, 1994
    Inventor: Oon T. Tan
  • Laser treatment method for removing pigmentations, lesions, and abnormalities from the skin of a living human
    Patent number: 5217455
    Abstract: A laser treatment method is provided which removes pigmentations, lesions, and abnormalities from the skin of a living human. The methodology comprises a carefully controlled irradiation of the chosen treatment site on the skin of a living human; avoids the creation of cosmetically disfiguring scars; and eliminates the typical hypopigmentation as well as the pitting and other changes in skin texture normally accompanying conventionally known laser treatment techniques.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: June 8, 1993
    Inventor: Oon T. Tan