Patents by Inventor George A. Graves, Jr.

George A. Graves, Jr. 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).

  • Controlled pore size ceramics particularly for orthopaedic and dental applications
    Patent number: 4737411
    Abstract: The present invention provides a ceramic composite having an open porous network and a controlled pore size comprising a plurality of ceramic particles having a fused glass coating and a method for producing the same. The ceramic particles are enveloped by and bonded to adjacent ceramic particles at their interfaces by the glass coating.
    Type: Grant
    Filed: November 25, 1986
    Date of Patent: April 12, 1988
    Assignee: University of Dayton
    Inventors: George A. Graves, Jr., Dale E. McCullum, Steven M. Goodrich
  • Bioabsorbable glass fibers for use in the reinforcement of bioabsorbable polymers for bone fixation devices and artificial ligaments
    Patent number: 4604097
    Abstract: A spun or drawn glass fiber for use in the area of medical implants, and particularly as a reinforcement for bioabsorbable polymeric orthopaedic and dental implants. The glass fiber is bioabsorbable and has sufficient tensile strength and elasticity to be used as a reinforcement. It is made up of 5-50% calcium oxide (CaO), 50-95% phosphorous pentoxide (P.sub.2 O.sub.5), 0-5% calcium fluoride (CaF.sub.2), 0-5% water (H.sub.2 O), and 0-10% XO wherein X is either a single magnesium, zinc or strontium ion or two sodium, potassium, lithium, or aluminum ions and when X is aluminum the O represents three oxygen ions.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: August 5, 1986
    Assignee: University of Dayton
    Inventors: George A. Graves, Jr., Binod Kumar