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Licensing Complementary Patents: "Patent Trolls", Market Structure, and "Excessive" Royalties [PDF]

, 2009
The infamous Blackberry case brought new attention to so-called "patent trolls" and began the general association of trolls with "non-practicing" patent holders. This has had important legal consequences: Namely, patent holders have been denied injunctive relief because they did not practice the patents themselves.
Anne Layne‐Farrar, Klaus M. Schmidt
core   +9 more sources

Patent Trolls and the Market for Acquisitions [PDF]

SSRN Electronic Journal, 2023
AbstractI study the effect of patent-infringement claims by patent trolls on acquisitions of small firms. Exploiting staggered adoption of state anti-patent troll laws, I find that the laws have two effects. First, the number of acquisitions of small firms declines after these laws are adopted. Second, the anti-troll laws increase the acquisition price
Arash Dayani
  +4 more sources

Patent Trolls on Markets for Technology - An Empirical Analysis of Trolls' Patent Acquisitions [PDF]

Academy of Management Proceedings, 2011
Patent trolls appropriate profits from innovation solely by enforcing patents against infringers. They are often characterized as relying on low-quality patents, an assessment that, if correct, would imply that eradicating such patents would effectively terminate the troll business.
Timo Fischer, Joachim Henkel
openalex   +2 more sources

Who Feeds the Trolls? Patent Trolls and the Patent Examination Process

SSRN Electronic Journal, 2016
Leveraging random examiner assignment and detailed patent prosecution data, we find that non-practicing entities (NPEs) purchase patents granted by examiners that tend to issue incremental patents with vaguely-worded claims. In comparison, practicing entities purchase a very different set of patents, but assert patents similar to those purchased by ...
Josh Feng, Xavier Jaravel
openalex   +2 more sources

Patent Trolls and Technology Diffusion

SSRN Electronic Journal, 2011
Patent assertion entities, sometimes known as 'patent trolls,' do not manufacture goods themselves but profit from licensing agreements that they often enforce via the threat of litigation. This paper explores empirically how litigation by one such patent troll affected the sales of medical imaging technology. It finds evidence that relative to similar
Catherine E. Tucker
openalex   +2 more sources

A Model of Patent Trolls [PDF]

SSRN Electronic Journal, 2015
AbstractThis article develops a model of patent trolls to understand various litigation strategies employed by nonpracticing entities (NPEs). When an NPE faces multiple potential infringers who use related technologies, it can gain a credible threat to litigate even when it has no such credibility vis‐à‐vis any single potential infringer in isolation ...
Choi, Jay Pil, Gerlach, Heiko
openaire   +8 more sources

Patent trolling w Wielkiej Brytanii

Problemy Prawa Prywatnego Międzynarodowego, 2018
Głównym tematem niniejszego artykułu jest obecny stan spraw dotyczących trollingu patentowego w Wielkiej Brytanii. Istnieje możliwość, że kraj ten może stać się w przyszłości głównym celem działań trolli. Dlatego opis brytyjskiego systemu patentowego, wraz z porównaniem z systemem amerykańskim, miejmy nadzieję, pozwoli odpowiedzieć, dlaczego do tej ...
Karolina Kluczka
openalex   +2 more sources

Saving Alternative Dispute Resolution in Patent Law: Countering the Effects of the Patent Troll Revolution [PDF]

, 2008
Published in cooperation with the American Bar Association Section of Dispute ...
David Fitzgerald
openalex   +3 more sources

UNFAIR COMPETITION IN PATENT LAW (PATENT TROLLING)

Scientific works of National Aviation University. Series: Law Journal "Air and Space Law", 2022
The purpose of this article is to consider problematic issues regarding unfair competition in patent law, in particular, patent trolling. For this purpose, the concepts of «patent trolling» and «patent troll» were analyzed. Types of patent trolls are also defined.
Alla Diduk, Stepan Lytvyn, Roman Pysanyy
openaire   +2 more sources

Typology of the Patent Troll Business [PDF]

SSRN Electronic Journal, 2009
Patent trolls have many faces, since the media uses this expression in various ways. The patent troll phenomenon thus seems to be an ambiguous term that is discussed in several directions. This paper reveals that a patent troll as such has no distinct shape or appearance.
Tim Pohlmann, Marieke Opitz
openaire   +1 more source