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United China Founded in 1984 which consist of “United China International Patent & Trademark Office”, “United China International Business Legal Office”and “United China Design & Information Corp”. United China has a worldwide network of association with other leading firms of lawyers which enable us to assist clients and agents all over the world on both domestic and international issues: conducting Taiwan and foreign patent and trademark searches; preparing and filing applications; and conducting oppositions, cancellations, interferences, handling license arrangements and assisting in dispute resolution in Taiwan Intellectual Property Office, China State Intellectual Property Office and Hong Kong Intellectual Property Office. We also perform legal and intellectual property consulting work on behalf of international law firms and trademark agents that need professional and timely representation on behalf of their clients in intellectual property protection matters, and litigation.