Abstract
This paper describes a data set built to analyze patent litigation in the United States during 1929-2006. The data include all patents in published district court and appellate court decisions in which validity and/or infringement are at issue. We collect numerous patentspecific variables and litigation-specific variables for these patents. The data also include a set of random patents matched to the litigated patents by issue date and technology. We discuss the characteristics of the data, present some descriptive statistics, and describe research using the data.
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