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The market value of blocking patent citations
Czarnitzki, Dirk; Hussinger, Katrin; Leten, Bart - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2011
shown that patents and their quality as measured by citations received by future patents contribute significantly to the … forward citations patents can receive at the European Patent Office. While a patent can be cited as non-infringing state of … the art, it can also be cited because it threatens the novelty of patent applications ('blocking citations'). Empirical …
Persistent link: https://www.econbiz.de/10009003575
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The market value of blocking patent citations
Czarnitzki, Dirk; Hussinger, Katrin; Leten, Bart - 2011
shown that patents and their quality as measured by citations received by future patents contribute significantly to the … forward citations patents can receive at the European Patent Office. While a patent can be cited as non-infringing state of … the art, it can also be cited because it threatens the novelty of patent applications ('blocking citations'). Empirical …
Persistent link: https://www.econbiz.de/10010304459
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Is Silence Golden? Patents versus Secrecy at the Firm Level
Hussinger, Katrin - 2004
In the 1990s, patenting schemes changed in many respects: upcoming new technologies accelerated the shift from price competition towards competition based on technical inventions, a worldwide surge in patenting took place, and the ?patent thicket? arose as a consequence of strategic patenting....
Persistent link: https://www.econbiz.de/10010297402
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Is Silence Golden? Patents versus Secrecy at the Firm Level
Hussinger, Katrin - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2004
In the 1990s, patenting schemes changed in many respects: upcoming new technologies accelerated the shift from price competition towards competition based on technical inventions, a worldwide surge in patenting took place, and the ?patent thicket? arose as a consequence of strategic patenting....
Persistent link: https://www.econbiz.de/10005097755
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The Link Between R&D Subsidies, R&D Spending and Technological Performance
Czarnitzki, Dirk; Hussinger, Katrin - 2004
This paper analyzes the effects of public R&D funding on R&D expenditure and patenting behavior of German firms. The main focus is the direct impact of subsidies on R&D and the indirect effect on innovation output measured by patent applications. We distinguish the productivity of purely...
Persistent link: https://www.econbiz.de/10010297381
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The Link Between R&D Subsidies, R&D Spending and Technological Performance
Czarnitzki, Dirk; Hussinger, Katrin - Zentrum für Europäische Wirtschaftsforschung (ZEW) - 2004
This paper analyzes the effects of public R&D funding on R&D expenditure and patenting behavior of German firms. The main focus is the direct impact of subsidies on R&D and the indirect effect on innovation output measured by patent applications. We distinguish the productivity of purely...
Persistent link: https://www.econbiz.de/10005098029