Which is more powerful, a technology patent or an invention patent?

Because utility models can be directly authorized without substantive examination procedures, and invention patents need to go through two procedures: preliminary examination and substantive examination, which are considered to be more stable. After China National Intellectual Property Administration released "Several Opinions of China National Intellectual Property Administration on Further Improving the Quality of Patent Application" in February 20 13, he even hated the "junk patent" of utility model, even to the point of shouting and killing everywhere. However, the utility model still has its advantages that cannot be ignored.