How do wind energy patents work?
Methodology for wind energy application can be generalized for patent searching to target other technology domains. Wind energy patents are conventionally defined using Cooperative Patent Classification (CPC) and International Patent Classification (IPC) codes that represent wind motors (F03D) and wind energy (Y02E 10/70).
How many patents are used in a wind energy application?
The number of patents used in all four samples on the wind energy application are outlined in Table C1. The sample size used for Sample 2 (Keyword Set – WEDD1) is 257, which is between 5 and 10% margin of error.
Can wind energy patents be retrieved using conventional codes?
Patents retrieved using conventional codes for wind energy underrepresent patents from China and published since . Methodology for wind energy application can be generalized for patent searching to target other technology domains.
How can the expanded domain be used to analyze wind energy innovation?
The expanded domain can be utilized in studies that require a robust data set for analysis of innovation activity in wind energy. The methodology used to derive and compare different domain definitions can be generalized for retrieving patents from any technology domain within other patent databases.
Does China's Wind Energy have a patent collaboration network?
This study attempts to investigate and analyze the patent collaboration network of China's WEI using the SNA method. The reviewed studies suggest that wind energy has attracted much attention for its sustainable and renewable advantages, while there are also many challenges in the development of WEI.
Is China a good place to patent offshore wind power?
Third, many previous studies of China's WEI concerned about patentees' and provinces' innovation capabilities [ 100, 101 ], suggested that State Grid Corporation of China ranks fourth in the number of patent application related to offshore wind power, and patent counts of Beijing and several coastal provinces are relatively high.
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