Patents by Inventor Robert G. Vivona

Robert G. Vivona 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: 5960407
    Abstract: A system for estimating price characteristics of a product from classified advertisements comprising a plurality of textual characters, comprises a relevant classified advertisement database, an attribute filter, a filtered classified advertisement database, a price analyzer and a graphing module. The relevant classified advertisement database stores relevant classified advertisement signals indicative of a subset of the classified advertisements which are directed to the product. The attribute filter receives the relevant classified advertisement signals, and generates in dependence thereupon numeric value signals indicative of prescribed subsets of characters in the subset of the classified advertisements. Each prescribed subset of characters represents a numeric value. The filtered classified advertisement database receives the numeric value signals and stores the numeric value signals.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: September 28, 1999
    Inventor: Robert G. Vivona