Question
A patent is an exclusive right to produce and sell a product for how long?
30 years
15 years
20 years
40 years
30 years
15 years
20 years
40 years
Answers
GPT-4o mini
A patent typically grants an exclusive right to produce and sell a product for **20 years** from the filing date of the patent application. Therefore, the correct answer is **20 years**.