Patent Analysis Lesson - Why I Don’t Use Extended Families When Counting Patents

While reduction of patent collections to a single INPADOC, or extended family, member is a popular method for eliminating multiple country filing biases it can often lead to situations where distinct inventions are removed, and the breadth and depth of inventive output from a single organization is understated. This post will provide a specific example of where an extended family reduction would under represent the inventive output of a single family by looking at the claims of the document collection and classifying them by technical concept.

http://www.patinformatics.com/blog/why-i-dont-use-extended-families...

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