Patent portfolios and knowledge flow(s) of photovoltaic companies |
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| Authors: | Yu-Hsin Chang Ming-Chung Yang Wen-Goang Yang Chien-Yu Lin |
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| Affiliation: | 1. Department of Marketing and Logistics Management, Chaoyang University of Technology, Taichung, Taiwan;2. Department of Business Administration, National Chin-Yi University of Technology, Taichung, Taiwan;3. Department of Leisure Service Management, Chaoyang University of Technology, Taichung, Taiwan;4. Department of Business Administration, National Yunlin University of Science and Technology, Douliou, Taiwan |
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| Abstract: | The current trend towards green energy is encouraging manufacturers to invest in photovoltaic technologies. In order to guarantee R&D and optimal operational performance, operators should be able to identify the technological advantages of their competitors for the conduct R&D and to ensure adequate technological knowledge intake. Therefore, from the perspective of patent portfolios and knowledge flow(s) of photovoltaic companies, this study adopted two approaches namely, patent counts and patent citations, to discuss the technical capability of R&D portfolios and the technological knowledge flow. Three patent indices were utilised for the integration of R&D portfolios which include: technology attractiveness, relative patent position, and revealed patent advantage. Technological knowledge flow allows construction of a patent citation network through backward citation of patents. Sources and movement directions of technological knowledge are measured by calculating the relative citation propensity. R&D portfolios and knowledge flow are complementary perspectives of each photovoltaic company. |
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| Keywords: | Photovoltaic R& D portfolio knowledge flows patent backward citation |
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