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《专利法》48条规定，专利权人自专利被授予之日起满3年，且自提出专利申请之日满4年，无正当理由未实施或者未充分实施其专利的；专利权人行使专利权的行为被依法认定为垄断行为，为消除或减少该行为对竞争产生的不利影响。
Always put the interests of customers first, focus on solving major intellectual property law issues, only to accept the value of the client commission, attention to their professional ethics and professional ideals, to become an expert intellectual property lawyers and make unremitting efforts.
