Is it normal to have three patents a year?

Not normal. According to fishclaw website, three patents a year is very powerful, and patent agents only invent three inventions a year. As a complex and important technical support, patent plays an important role in the strategic development and promotion of enterprises. The enterprise lies in the competition of peers, not only in the overall strength and products and other services, but also in the number of patents. High-value and large number of patents are beneficial for enterprises to realize and expand market monopoly.