Patents by Inventor Chen Liang Kang

Chen Liang Kang 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).

  • Vaginal ring preparation and application
    Publication number: 20020161352
    Abstract: A vaginal drug delivery device includes a tubular base of an inert rubber composition, a first layer having a thickness up to 3 mm composed of a mixture of a drug to delivered, at least one surfactant and at least one dispersing agent applied to said outer surface of the tubular base, and a second layer of silicone rubber having a thickness up to 1 mm encapsulating the first layer on the tubular base whereby said drug will diffuse through said second layer when the device is inserted into the vagina to treat the patient with the drug in the first layer.
    Type: Application
    Filed: April 25, 2002
    Publication date: October 31, 2002
    Inventors: Chen Hai Lin, Shao Hai Hao, Chen Jian Xing, Chen Liang Kang