Patents are considered to be major sources of technological and competitive information. Patent documents contain various types of information like applicant’s & inventor’s details, International Patent Class (IPC); detailed technological information, citations to prior art, claims, geographical location etc. The patent data is increasingly available on internet and have excessively potential for technologists in the field of technical change and innovation. Various methods have already been reported to analyze the patent data. Currently, business professionals, scientists and researchers are using patent information to analyze patenting activity in a geographical area, technology or company to determine the direction of technological transformation, or determine the relative technological scenario of an organization in a marketplace.