Patent trolls on markets for technology – An empirical analysis of NPEs’ patent acquisitions

Fischer, Timo; Henkel, Joachim

doi:10.1016/j.respol.2012.05.002

Cited by 127 publications

(49 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, patents with unclear boundaries and validity are created. However, Fischer and Henkel (2012) show that NPEs patents seem to be of higher quality because they are cited significantly more often than other patents; a result that is also confirmed by our analysis.…”

Section: Introductionsupporting

confidence: 86%

See 1 more Smart Citation

Patent Trolls, Litigation, and the Market for Innovation

Haus

Juranek

2014

SSRN Journal

View full text Add to dashboard Cite

We examine the role of non-practicing entities (NPEs), often called patent trolls, in patent litigation.We present a theoretical model that predicts that cases with NPE patentees resolve faster. We test this prediction using a hand-collected data set of US patent litigation cases. We find that NPEs challenge larger and more technology intensive firms, and use more valuable patents from technology areas that have a less fragmented ownership base compared to the control group. Controlling for these factors, we find that NPE cases are indeed resolved faster. NPEs help to increase the speed of diffusion of technology into the economy; therefore, increasing the effectiveness of the market for innovation.

show abstract

Section: Introductionsupporting

confidence: 86%

“…Unfortunately, this study lacks a control group. Fischer and Henkel (2012) compare patents acquired by NPEs with patents acquired by practicing firms and show that NPE patents are of significantly higher value. Shrestha (2010) shows that the same is true among the group of litigated patents.…”

Section: Introductionmentioning

confidence: 99%

Patent Trolls, Litigation, and the Market for Innovation

Haus

Juranek

2014

SSRN Journal

View full text Add to dashboard Cite

show abstract

“…They show that counts of triples by technical area are significantly higher for technologies classified as complex than for areas classified as discrete by Cohen et al (2000). Fischer and Henkel (2012) find that the measure predicts patent acquisitions by Non-Practicing Entities. Graevenitz et al (2013) use the measure to study patenting incentives in patent thickets and Harhoff et al (2015) show that opposition to patent applications falls in patent thickets, particularly for patents of those firms that are caught up in the thickets.…”

Section: Patent Thicketsmentioning

confidence: 96%

Technology entry in the presence of patent thickets

Hall

Helmers

Graevenitz

2016

Working Paper Series

View full text Add to dashboard Cite

We analyze the effect of patent thickets on entry into technology areas by firms in the UK. We present a model that describes incentives to enter technology areas characterized by varying technological opportunity, complexity of technology, and the potential for hold-up in patent thickets. We show empirically that our measure of patent thickets is associated with a reduction of first time patenting in a given technology area controlling for the level of technological complexity and opportunity. Technological areas characterized by more technological complexity and opportunity, in contrast, see more entry. Our evidence indicates that patent thickets raise entry costs, which leads to less entry into technologies regardless of a firm's size.JEL codes: O34, O31, L20, K11

show abstract

“…Coercive patent-holding firms assemble an arsenal of patents applicable to specific markets or areas of technology (Fischer & Henkel, 2012). The strategy is to immediately deliver a significant amount of litigation pressure and business risk to a targeted firm and force licensing rents from the firm.…”

Section: Introductionmentioning

confidence: 99%

Disrupting the Disrupter: Strategic Countermeasures to Attack the Business Model of a Coercive Patent-Holding Firm

Smith

2015

Technology Innovation Management Review

View full text Add to dashboard Cite

Patent trolls on markets for technology – An empirical analysis of NPEs’ patent acquisitions

Cited by 127 publications

References 42 publications

Patent Trolls, Litigation, and the Market for Innovation

Patent Trolls, Litigation, and the Market for Innovation

Technology entry in the presence of patent thickets

Disrupting the Disrupter: Strategic Countermeasures to Attack the Business Model of a Coercive Patent-Holding Firm

Contact Info

Product

Resources

About