What are the differences and connections between trademarks, patents and copyrights?

Trademark is a significant symbol of words, graphics, letters, numbers, three-dimensional signs, sounds, colors or the combination of the above elements used by commodity producers and operators in their production, manufacturing, processing, selection and distribution of goods or services provided by service providers, and it is a product of modern economy.

Patent literally refers to exclusive rights and interests. The word "patent" comes from Latin "Litterae patentes", 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 right certificate signed by the British king himself.

Copyright (English name: copyright) refers to the rights enjoyed by the authors of literary, artistic and scientific works (including property rights and personal rights). Copyright is a kind of intellectual property, including natural science, social science, literature, music, drama, painting, sculpture, photography and film works.