Patents by Inventor James V. Derby

James V. Derby 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).

  • Paving composition containing lime kiln dust
    Patent number: 7241337
    Abstract: A stone matrix asphalt for use as a paving composition, containing lime kiln dust as a mineral filler. The lime kiln dust results from production of lime from limestone in a kiln and contains available calcium oxide in an amount of less than forty percent by weight.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 10, 2007
    Assignee: Carmeuse North America Services, Inc.
    Inventors: Ralph W. Bardine, Lawrence W. Cole, James V. Derby