．Filing Domestic and Foreign Trademark Applications for Registration、Opposition、Invalidation、Revocation、Response、Recordal of Transfer、Recordal of License、Renewal、Recordal of Changing、Re-issue a Registration Certificate ．Trademark Trial and Appeal ．Trademark Search、Trademark Consult

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．Lawyer's Letter、Advertising Notices、Deal with the Legal Cases of Counterfeits and Infringement Product、Patent Legal Counsel