Patents by Inventor Kewang Lu

Kewang Lu 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).

  • Dental composition and method
    Patent number: 5338773
    Abstract: The invention provides dental cement compositions and methods of using them for binding hard tooth material, metal and ceramic. The cement compositions include polymerizable acid reactive ethylenically unsaturated monomers, and a source of cations reactive therewith, to further crosslink the resulting polymer. The cements have superior adhesion to tooth without separately acid etching dentin or enamel. Compositions of are useful as dental luting cements, liners, bases and restoratives.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: August 16, 1994
    Assignee: Dentsply Research & Development Corp.
    Inventors: Kewang Lu, Chin-Teh Huang, Paul Hammesfahr