The Value of International Patent Rights

By Jonathan D. Putnam, Ashish Arora, Robert Evenmn, Brian Fikkert, Samuel Kortum, Jenny Lanjouw, Josh Lerner. 2001

233 citations recorded by the source corpus.

View Paper: https://www.semanticscholar.org/paper/c48156c528300901622faf0be45fcc36518f2285

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Citations in the corpus

In Search of Performance Effects of (In)Direct Industry Science Links (2008, result): “19 In a study of European polymer patent opposition, Reitzig (2002) did not find significant differences in likelihood of patent opposition between patents reporting non-patent references and those not reporting; a similar finding is reported by Harhoff and Reitzig (2002) for a sample of biotechnolo”
The influence of strategic patenting on companies' patent portfolios (2009, methodology): “In addition to the citation and opposition measure used in our empirical analysis, for completeness, the following four indicators have to be mentioned: references, family size (Putnam 1996), number of claims and routes of patent protection.”
The Market Value of R&D, Patents and Trademarks (2011, unknown): “Indicators such as forward citations, patent oppositions, and the size of patent families reflect different dimensions of patent value (Harhoff et al., 2003a; Harhoff and Reitzig, 2004; Putnam, 1996; Trajtenberg, 1990).”
The Dynamics of the Transfer and Renewal of Patents (2008, background): “Schmookler [44], Scherer [45], Griliches [20], Pakes and Schankerman [37], Schankerman and Pakes [42], Pakes [36], Tratjenberg [49], Jaffe, Henderson and Tratjenberg [25], Putnam [40], Lanjouw [30], Schankerman [43] Harhoff, Narin, Scherer and Vopel [23], Lanjouw and Schankerman [31], Hall, Jaffe an”
R&D and the Patent Premium (2008, unknown): “In a related argument, Bessen and Maskin (2000) argue that in industries where technology progresses cumulatively, firms can use patents to block potentially more (or differently) capable competitors from using their innovations in subsequent research, thereby dampening the pace of advance.”
Improving patent valuations for management purposes--validating new indicators by analyzing application rationales (2004, background): “Family size—and indicator known from earlier works by Grefermann et al. (1974) and Schmoch et al. (1988)—was introduced as a value indicator by Putnam (1996) and again re-validated by Lanjouw and Schankerman (2001), Harhoff and Reitzig (2002), and Guellec and van Pottelsberghe de la Potterie (2000”
Citations, Family Size, Opposition and the Value of Patent Rights (2003, background): “The latter measure follows Lerner's (1994) example, while the "family size" variable has been proposed by Putnam (1996).”
Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators (2004, background): “Other important indicators that have been used include the number patent citations (Trajtenberg, 1990; Hall et al. 1999b), patent family size (the number of countries in which the patent is taken out) (Putnam, 1996) and the number of claims in the patent application (Tong and Frame, 1994).”