Patents by Inventor Ching-Wu Weng

Ching-Wu Weng 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).

  • Gingival retraction material
    Publication number: 20050287494
    Abstract: A gingival retraction material is prepared using fibrillated fibers to improve viscosity and combining taste-modifying agent, color agent, and kaolin filler to form a paste-like structure having the viscosity ranging from 31.0×106 cP to 71.0×106 cP. The gingival material is injectable into the patient's gingival sulcus to provide a physical active force that widens the patient's gingival sulcus by means of the material viscosity and also to control gingival tissue fluid and hemostasis so as to keep the gingival sulcus dry for further mold impressions.
    Type: Application
    Filed: September 22, 2004
    Publication date: December 29, 2005
    Applicant: Biotech One Inc,
    Inventors: Jen-Chang Yang, Hsien-Kun Lee, Sheng-Yang Lee, Ching-Wu Weng, Jiunn-Liang Chen, Lin Hsu-Ting