Is there a patent for Little Sun Trusteeship Class?

Little Sun Trusteeship Class has no patent. According to PatemtGuru's inquiry, there is no patent information about Little Sun, so Little Sun Trusteeship Class has no patent. Patent, literally, refers to the exclusive right. The word "patent" comes from Latin Litteraepatentes, which means open letters or open documents. It is a certificate used by medieval monarchs to issue certain privileges, and later refers to the exclusive rights certificate signed by the British king himself. In modern times, patents are generally documents issued by government agencies or regional organizations representing several countries according to their applications. This kind of document records the contents of the invention and creation, and in a certain period of time, it has produced such a legal state, that is, under normal circumstances, patented inventions and creations can only be implemented by others with the permission of the patentee.