Kt Cat Gold Pendant is not a patented product of China Gold. It is an ordinary gold pendant, but because of its special design, it has a unique appearance and texture, making it a popular gold ornament.
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.