On the humanistic front, the application of intellectual property law and related legal problems on cultural heritage is much more complex and individual considerations is allowed. International organizations and treaties provided only guidelines for common consensus and there is a lack of enforcement system to assure the implementation of laws on cultural heritage's intellectual property rights. In this paper, the patent applications regarding the repairing techniques, copy rights of the government owned objects, design patents derived from the known cultural objects, trading marks derived from the known cultural objects, regulations regarding the trading for private antiques, and the replications of government owned cultural objects, are presented from the patent and legal considerations. The considerations and conflicts which obstructed the cultural objects from current intellectual property rights system are analyzed. Actual examples are presented in this paper for patentability discussion. For enterprises involving cultural objects tradings, the related trading regulations of Taiwan and China are briefly introduced for real applications.