How much can I borrow for a patent of 2000 yuan?

1000 yuan.

According to China's relevant laws and regulations, patents can be loaned, and the amount of patent loans generally cannot exceed 50% of the fair market value or evaluation value of the patent. The term of patent loans is generally not more than one year, and it is not more than two years under special circumstances. So the loan amount is: 2000×50%= 1000 yuan.