This chapter summarizes the basic characteristics of patent data as an innovation indicator and reviews some of the … recent research using patent data, focusing on major developments since Griliches in 1990 [Griliches, Z. (1990). “Patent … availability of patent data on an increasingly global scale and the accompanying global spread of research using patent data. The …

claimed invention based on a combination or modification of a prior art reference. Sri Lanka, as a developing country, should … look at the development that has taken place in other jurisdictions and adapt the patent law to local conditions when …