Trademarks, patents and copyrights are three different forms of intellectual property used to protect different types of creations and innovations. The main differences between them are as follows:

Trademark:

A trademark is a sign used to distinguish the source of specific goods or services. It can be a graphic, text, a combination of graphics and text, etc. The main purpose of a trademark is to protect a company's brand and the interests of consumers, and ensure that consumers can identify and distinguish different goods or services. Trademark rights protect the exclusive right to use a trademark, enabling the holder of a registered trademark to prevent others from using the same or similar trademark on the same or similar goods or services, and to avoid confusion and misleading.

Patent:

Patent is the exclusive right to protect inventions and creations. It can be novel and non-obvious technological innovations in products, methods, processes, etc. The main purpose of patents is to encourage innovation and technological progress and protect the rights and interests of inventors. By obtaining a patent, an inventor has the exclusive right to use, make, sell, and license others to use their invention for a certain period of time. Patent rights protect invented technical solutions and prevent others from using the technology without permission during the validity period of the patent rights.

Copyright:

Copyright is the right to protect original works, including copyrights in literature, art, music, movies, software and other creations. Copyright protects the specific form of expression, not the idea itself. It gives the copyright owner the exclusive right to use his or her work, including the rights to reproduce, distribute, display, perform, and modify it. The main purpose of copyright is to protect the author's creative achievements and encourage creation and the dissemination of cultural creativity.

To sum up, trademarks mainly protect commercial identities, patents protect technological innovations and inventions, and copyrights protect literary, artistic and creative works. Each form of intellectual property has its unique protection objects and purposes to promote innovation and development in different fields.