Patents by Inventor Louis J. Colarusso, Jr.

Louis J. Colarusso, 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).

  • Patent number: 4952530
    Abstract: A composite suitable for use as dental composite is provided by a glass material having a softening range of at least 10.degree. C. and having a particle size of less than 250 mesh to provide a precursor mix. The precursor mix is mixed with a fugitive pore forming material and a binder to form a pressable mix. The pressable mix is pressed at a pressure in excess of 5,000 pounds per square inch to form a sinterable mix. The sinterable mix is sintered for a period of time sufficient to remove said fugitive pore forming material and to form a sintered mass for crushing to form particles of less than 250 micrometers in size to be incorporated into a dental composite.
    Type: Grant
    Filed: December 1, 1988
    Date of Patent: August 28, 1990
    Assignee: Erico International Corporation
    Inventors: Denis A. Brosnan, Louis J. Colarusso, Jr.