Patent thickets may inefficient retard cumulative innovation. This paper explores two alternative mechanisms that may be used to weed out patent thickets. Both mechanisms are intended to reduce the number of patents in our society. The first mechanism we discuss is price based regulation of...

Intellectual property systems all over the world are modeled on the one-size-fits-all principle. However important or unimportant, inventions and original works of authorship receive the same scope of protection, for the same period, backed by the same variety of legal remedies. Metaphorically...

This Article demonstrates that all intellectual property defenses fit into three conceptual categories: general, individualized, and class defenses. A general defense challenges the validity of the plaintiff’s intellectual property right. When raised successfully, it annuls the plaintiff’s...

This Essay demonstrates the strategic advantage of narrow patents and unprotected publication of R&D output. Broad patents might stifle follow-on improvements by deterring potential cumulative innovators, who fear being held up by the initial inventor at the ex post licensing stage. By opting...