Patents by Inventor John W. Dugan

John W. Dugan 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: 5857174
    Abstract: A real estate appraisal method in which the buyer of a property assigns points to a subject property and each comparable property based upon an Ideal Point System (IPS). The points assigned, or IPS values, are based upon the desirability factors for each of five categories of criteria. The total possible IPS value for any property is 100, corresponding to 100 per cent desirability. Once the buyer's IPS values are determined, the property may be subsequently used as a comparable property. The appraiser need only select a subject property and obtain IPS values for the subject property. The sales price of each comparable property is then adjusted based upon the relative difference between the IPS values for the comparable properties and the IPS values of the subject property, by dividing the total IPS value for each comparable property with the IPS value for the subject property to obtain a composite adjustment ratio.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: January 5, 1999
    Inventor: John W. Dugan