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The relationship among innovative output, productivity, and profitability: a test comparing USPTO and EPO data
Santarelli, Enrico; Lotti, Francesca - 2007
already under way respectively at the U.S. Patent and Trademark Office (USPTO) and the European Patent Office (EPO). For most … this purpose, we use a unique data set which collects balance sheet items and patent information from EPO and USPTO. After … only patents with the EPO, along with larger firm size, have a statistically significant relationship with productivity …
Persistent link: https://www.econbiz.de/10010263794
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Borders and distance in knowledge spillovers: dying over time or dying with age? ; evidence from patent citations
Li, Yao - 2009
This paper uses a gravity framework to investigate the effects of distance as well as subnational and national borders in knowledge spillovers. Drawing on the NBER Patent Citations Database, we examine patent citations data at metropolitan level within the U.S. and the 38 largest patent-cited...
Persistent link: https://www.econbiz.de/10010264618
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Mobility of research workers and knowledge diffusion as evidenced in patent data: the case of liquid crystal display technology
Stolpe, Michael - 2001
This paper analyses the nature of knowledge spillovers from research and development (R&D) in the field of liquid crystal display technology by estimating the impact of inventors' changing organizational and collaborative affiliations on the probability of citations in US patents filed between...
Persistent link: https://www.econbiz.de/10010265485
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Financial signalling by innovative nascent entrepreneurs
Audretsch, David B.; Bönte, Werner; Mahagaonkar, Prashanth - 2009
External finance is central for nascent entrepreneurs, people in the process of starting new ventures. We argue that nascent entrepreneurs use patents and prototypes in order to signal their ability to appropriate the returns from their innovation as well as the project´s feasibility. Our...
Persistent link: https://www.econbiz.de/10010266651
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Pre-grant patent publication and cumulative innovation
Aoki, Reiko; Spiegel, Yossi - 2007
We examine the implications of pre-grant publication (PP) of patent applications in the context of a cumulative innovation model. We show that pre-grant publication of patents lead to fewer applications and fewer inventions, but it raises the probability that new technologies will reach the...
Persistent link: https://www.econbiz.de/10010270359
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Technology transfer offices and university patenting: a review
von Ledebur, Sidonia - 2008
This policy paper on science-industry technology transfer has four emphases: the rationale of recent changes in German science policy, the contribution of diverse transfer channels to economic development as well as the role of IPR in that context, the differences in the institutional framework...
Persistent link: https://www.econbiz.de/10010274510
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Citation Frequency and the Value of Patented Innovation
Vopel, Katrin; Scherer, Frederic M.; Narin, Francis; … - 1997
Through a survey, economic value estimates were obtained on 962 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents yielded a count of citations to those patents....
Persistent link: https://www.econbiz.de/10010297565
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Exploring the Tail of Patented Invention Value Distributions
Scherer, Frederic M.; Harhoff, Dietmar; Vopel, Katrin - 1997
We explore the tail of patented invention value distributions by using value estimates obtained directly from patent holders. The paper focuses on those full-term German patents of the application year 1977 which were held by West German and U.S. residents. The most valuable patents in our data...
Persistent link: https://www.econbiz.de/10010297567
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First-to-invent versus first-to-file: International patent law harmonization and innovation
Miyagiwa, Kaz - 2007
The U.S. has been under pressure to abandon the unique first-to-invent feature of its patent law for awarding patents. The opposition to reform however argues that switch to a first-to-file rule, the international norm, will undermine innovation. We evaluate this argument in a dynamic stochastic...
Persistent link: https://www.econbiz.de/10010332206
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Financial signaling by innovative nascent entrepreneurs
Audretsch, David B.; Bönte, Werner; Mahagaonkar, Prashanth - 2009
External finance is central for nascent entrepreneurs, people in the process of starting new ventures. We argue that nascent entrepreneurs use patents and prototypes in order to signal their ability to appropriate the returns from their innovation as well as the project's feasibility. Our...
Persistent link: https://www.econbiz.de/10010291111