Hello, do you need a prototype when applying for a patent for an agricultural machinery invented by yourself? Or a design drawing will suffice. Thank you.

To apply for a patent, you do not need to make a physical product or prototype. You only need to describe in detail in text the differences and advantages of your patented technology compared with existing similar products.

There is also no need for design drawings, but only a simple black and white line schematic diagram. The schematic diagram is used to explain your patented technology in combination with text descriptions.

There are three types of patents in China: inventions, utility models, and designs.

Depending on your situation, you may apply for an invention or utility model patent.

For more patent application content, you can search Beijing University United for further assistance.