Patents by Inventor Christopher Louis Tsu

Christopher Louis Tsu 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).

  • Powder for dental powder blasting
    Patent number: 10278904
    Abstract: The present invention relates to calcium carbonate particles, a powder mixture including such particles and a tooth cleaning method wherein the particles or powder mixture are used.
    Type: Grant
    Filed: September 21, 2012
    Date of Patent: May 7, 2019
    Inventor: Christopher Louis Tsu
  • POWDER FOR DENTAL POWDER BLASTING
    Publication number: 20140242552
    Abstract: The present invention relates to calcium carbonate particles, a powder mixture comprising said particles and a tooth cleaning method wherein the particles or powder mixture are used.
    Type: Application
    Filed: September 12, 2012
    Publication date: August 28, 2014
    Inventor: Christopher Louis Tsu