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| Tekijä: | Reitzig, M. |
| Otsikko: | The private values of 'thickets' and 'fences': towards an updated picture of the use of patents across industries |
| Lehti: | Economics of innovation and new technology
2004 : JUL, VOL. 13:5, p. 457-476 |
| Asiasana: | Patents Strategy Industries Europe |
| Vapaa asiasana: | Intellectual property rights |
| Kieli: | eng |
| Tiivistelmä: | On the basis of a novel data set of 612 European patents and related inventions from five different industries, it is shown that multiple patents per invention are filed in both discrete and complex technologies (here as: d-tech. and c-tech.). Multivariate analysis of the data suggests that in selected d-tech., patent 'fences' may serve to exclude competitors whereas in c-tech., 'thickets' represent exchange forums for complementary technology. The results expand on traditional views of profitable patent exploitation across industries and elaborate on the most recent findings by Cohen (et al.) 2000: Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (or not). Cambridge, MA., NBER. The analysis suggests that different legislative issues arise from multiple patenting per innovation in c-tech. and d-tech. depending on the degree of technological complementarity. The results have unexpected policy implications in that they illustrate how patentees could eliminate competition in the form of substitute technologies through fencing. |
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