About the acceptance unit for invention patent mitigation fees: State Intellectual Property Office Acceptance conditions: Individuals with low personal income, insufficient scientific research funds for public institutions and corporate losses. Documents to be submitted: A request for cost reduction stating the reasons for the reduction; if a legal person requests cost reduction, it must also submit a cost reduction certificate issued by the superior authority. Mitigation ratio: (1) The maximum proportion of an individual's request to mitigate application fees (printing fees and surcharges will not be reduced), invention patent application examination fees, and annual fees within three years from the year the patent right is granted (inclusive) shall not exceed 85, The maximum ratio of invention patent application maintenance fees and reexamination fees shall not exceed 80%. (2) An entity or unit and an individual or two or more individuals apply together to reduce the application fee (printing fees and surcharges will not be reduced), the invention patent application examination fee, within three years from the year when the patent right is granted (including the current year) The maximum percentage of the annual fee does not exceed 70. The maximum ratio of invention patent application maintenance fees and reexamination fees shall not exceed 60%. (3) If two or more units apply for the same application, no mitigation fee will be granted.