Patent quality index (PQI) is a mathematical tool to measure the quality of patent by considering the multiple aspects such as technical strength, commercial value, prosecution proceedings and legal strength. Each aspect includes multiple parameters and the PQI is measured either considering single aspect or combination of one or more aspects.
PQI is a data driven tool and measures the technical and commercial quality of patent. Following exemplary parameters can be considered to build a customized model for measuring PQI:
Weighting by ranking is a one of the method to measure the quality of patent. Predefined weightage is assigned to multiple parameters and score for each parameter is calculated based on weightage and the parameter value. Cumulative ranking of patent is derived based on scores of individual parameters.