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Canadian patent data base: The philosophy, construction and uses of the Canadian patent data base PATDAT

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  • Ellis, E.D

Abstract

PATDAT comprises the following data elements: the normal bibliographic data, the patentee type, the patent type, the SIC of Manufacture, the SIC of Use, the general utility and the consumer utility of the object of the patents. PATDAT consists of two sections: a sample section spanning the years 1972 to 1977 containing all patents: granted to patentees who were granted ten or more patents in that year, granted to Canadian residents, naming a Canadian resident as inventor, and an ongoing section covering all patents granted in Canada from 1978 onwards. The paper provides also statistical data for 1978 and 1979 about the ownership of Canadian patents and for the period of 1972 to 1979 about the number of patents with Canadian inventors, broken down according to the SIC of use.

Suggested Citation

  • Ellis, E.D, 1981. "Canadian patent data base: The philosophy, construction and uses of the Canadian patent data base PATDAT," World Patent Information, Elsevier, vol. 3(1), pages 13-18, January.
    • Handle: RePEc:eee:worpat:v:3:y:1981:i:1:p:13-18
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    Cited by:

    1. McGahan, Anita M. & Silverman, Brian S., 2006. "Profiting from technological innovation by others: The effect of competitor patenting on firm value," Research Policy, Elsevier, vol. 35(8), pages 1222-1242, October.
    2. McGahan, Anita M. & Silverman, Brian S., 2001. "How does innovative activity change as industries mature?," International Journal of Industrial Organization, Elsevier, vol. 19(7), pages 1141-1160, July.

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