Comparative study of features of Delphion, QPAT, derwent innovation index (DII) and world intellectual property system (WIPS) of patent databases
Jha, Deepak Kumar
Comparative study of features of Delphion, QPAT, derwent innovation index (DII) and world intellectual property system (WIPS) of patent databases - New Delhi: CSIR-NISCAIR / CSIR-NIScPR,
Comparative study of features of Delphion, QPAT, derwent innovation index (DII) and world intellectual property system (WIPS) of patent databases - New Delhi: CSIR-NISCAIR / CSIR-NIScPR,