Law Commons^™

Patent Infringement As Trespass, Adam J. Macleod

Faculty Articles

The now-conventional account of patent law holds that infringement is a strict liability offense, meaning that intent is not an element of an infringement claim. This account heightens the apparent injustice of patent law's special knowledge problem, that as ambiguous descriptions of intangible resources, patent claims do not sufficiently make potential infringers aware of a patentee's right to exclude. Particularly in the age of so-called "patent thickets, " clusters of patents of variable merit which are indistinguishable from each other and from prior art, strict liability, or infringement seems rather hard.

These problems reflect a conceptual misunderstanding. When infringement is …