@article{feldman2019patent,
author = {Feldman, Robin C. and Lemley, Mark A.},
title = {The Sound and Fury of Patent Activity},
journal = {Minnesota Law Review},
volume = {103},
pages = {1793-1877},
year  = {2019},
url = {https://scholarship.law.umn.edu/mlr/3279},
annote = {Quote: "NPEs---the entities responsible for most patent litigation in the United States in recent years---don't seem to be contributing to society by licensing their patents."},
}