Abstract
Carbon Capture and Storage (CCS) technology is an effective technical means for addressing climate change. The patent documents related to CCS technology filed in China and the United States (U.S.) were searched from INNOGRAPHY, a business database of intellectual property and the technological innovation capabilities of CCS technology were investigated from the perspectives of the lifespan of a patent, the number of claims, the number of forward citations, patent strength and competitive position based on a comparative study between China and the U.S. The results showed that the U.S. has an obvious advantage over the technological innovation capabilities compared to China in the field of CCS technology. The global total number of granted patents in the field of CCS technology was 2325 by the end of 2015, there were 703 and 468 granted patents in U.S. and China respectively. CCS technology in the U.S. has arrived at the stage of growth, or even maturity but is still at the research and development stage in China. Although the number of patents for Chinese CCS technologies is very close to that of the U.S. and is ranked second, China should be focused on enhancing its technological capabilities and patent quality. The policy implications of these research findings and the research limitations are also noted.
Highlights
Since human society entered the industrial age, about 8% of fossil fuel resources have been consumed, which has produced an estimate of 400 gigatons of carbon (Gt-C)
The patent documents related to Carbon Capture and Storage (CCS) technology filed in China and the United States (U.S.) were searched from INNOGRAPHY, a business database of intellectual property and the technological innovation capabilities of CCS technology were investigated from the perspectives of the lifespan of a patent, the number of claims, the number of forward citations, patent strength and competitive position based on a comparative study between China and the U.S The results showed that the U.S has an obvious advantage over the technological innovation capabilities compared to China in the field of CCS technology
In order to improve the relevancy of our patent retrieval, we looked through relevant scientific literatures, including books and articles published in multiple disciplines, to achieve a more complete and correct understanding of CCS technology and collect the core keywords and relevant patent documents directly related to CCS technology, which contains the core keywords in their title, to collect the synonyms or other expression forms of the core keywords for the patent search string
Summary
Since human society entered the industrial age, about 8% of fossil fuel resources have been consumed, which has produced an estimate of 400 gigatons of carbon (Gt-C). These emissions were released back into our atmosphere in the form of CO2 [1]. The Intergovernmental Panel on Climate Change (IPCC) concluded that the global average surface temperatures have increased by 0.74 ± 0.18 ◦C during the twentieth century [1] and increasing anthropogenic greenhouse gases (GHG) concentrations are the principal contributor to most of the rise in global average temperatures. CO2 has become one of the most significant anthropogenic greenhouse gases [3].
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