The following charges include all of the costs required (in HKD), which include all of the official fee, attorney fee, documentation fees and regular incidentals. -The following charges exclude the charges for responding to the objection or cancellation by third parties or official, patent assignment or renewal, etc. -To conduct a patent search before the application for registration in order to evaluate the feasibility of registration. (optional) -It is an estimated cost only and the charge is subject to actual cost which may vary due to unforeseen circumstances like fluctuation of currency and increase or decrease of tariffs, procedures and works.