On Predicting Patent Litigation

Predicting litigation likelihood and time to litigation for patents

“…The author's work undoubtedly made a significant contribution to the field of predicting patent litigations. Petherbridge [3] pinpointed the limitation of Chien's model in terms of accuracy and practicability including a high false positive rate. Comparing with our work, [3] provided an explanation illustrating a relatively rare event of the patent litigation problem while we tested the models with actual data.…”

“…Petherbridge [3] pinpointed the limitation of Chien's model in terms of accuracy and practicability including a high false positive rate. Comparing with our work, [3] provided an explanation illustrating a relatively rare event of the patent litigation problem while we tested the models with actual data. Even though our model shows the similar issue as Chien's work of a high misclassification potential, it can be calibrated to reduce the false positive rate under an acceptable false negative rate.…”

“…We address some of these flaws. In particular, our models use actual data covering a larger time span as pinpointed by [3] and [4]. We introduce different informative features that have not yet been considered in prior works.…”

“…Patents are means to protect intellectual property and they establish inventions. Some large companies including Canon, Google, IBM, Microsoft and Samsung have been obtaining and accumulating a large number of patents each year, especially in recent years 3 .…”