Method and system for evaluating/analyzing patent portfolio using patent priority approach

A system for evaluating/analyzing patent portfolio using patent priorities, comprising:

• a data storage unit for storing a plurality of litigation case data;
• a key patent screening unit, comprising a first computer, for selecting one of the litigation case data that has a greatest case importance coefficient among case importance coefficients as important case data and forming key patent data from patents referred by the important case data;
• a data set unit for searching the key patent data to obtain the patent family corresponding to the key patent data and to obtain members of the patent family and priorities claimed by the members of the patent family so as to establish a data set based on the members of the patent family and the priorities claimed by the members of the patent family, wherein the data set is stored in the computer;
• and
• a data analysis unit, comprising the computer, for analyzing or calculating the data set to obtain a critical chain, a significant chain or at least one core patent candidate through approaches of a priority relationship matrix, priority cumulating or priority screening to calculate a generation number and the number of claimed times of priority in the priority relationship matrix, so as to perform patent evaluation or establishment of patent portfolio according to the critical chain, the significant chain or the core patent candidate(s),
• wherein the data storage unit stores an amount of affiliates in the litigation case data and size of the members of the patent family being obtained via search while the case importance coefficient is obtained by multiplying the amount of affiliates in the litigation case data with the size of the members of the patent family.