Patents by Inventor Ray C. Williams

Ray C. Williams 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).

  • Pyridinoline crosslinks as markers of periodontal and peri-implant disease activity
    Patent number: 5516699
    Abstract: A method of diagnosing severity of periodontal disease or peri-implant disease in a human patient, involving a) obtaining a sample of tissue or gingival crevicular or other fluid from the mouth of said patient, or a blood or urine sample from the patient, and b) measuring a pyridinoline crosslinked compound in the sample as a measure of severity of disease.
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: May 14, 1996
    Assignees: Institute of Molecular Biology, Inc., President and Fellows of Harvard College
    Inventors: William V. Giannobile, Ray C. Williams, Samuel E. Lynch
  • Wound healing and bone regeneration using PDGF and IGF-I
    Patent number: 4861757
    Abstract: Healing an external wound or regenerating bone of a mammal by administering to the mammal a composition containing purified platelet-derived growth factor and purified insulin-like growth factor.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: August 29, 1989
    Assignees: Institute of Molecular Biology, President and Fellows of Harvard College
    Inventors: Harry N. Antoniades, Samuel E. Lynch, Ray C. Williams