Mr. Zhang specializes in dispute resolution and non-litigation matters within the intellectual property field, with particular expertise in handling patent litigation, invalidation, and intellectual property legal consulting and due diligence. Mr. Zhang has practical experience in patent invalidation, infringement, and administrative litigation. He has represented clients in numerous patent infringement lawsuits and patent invalidation cases adjudicated by various local courts and the National Intellectual Property Administration. Additionally, he provides legal advice on import-export compliance and intellectual property due diligence.