1. According to the explanation in China National Intellectual Property Administration's "20 12 National Patent Agent Qualification Examination FAQ", there are mathematics majors in the "old and new comparison table of science and engineering majors in colleges and universities", which meets the registration conditions.
If you have worked for 2 years, you can meet the requirements. Just write a certificate that you have been engaged in scientific and technological work for 2 years since XX, and then your company will stamp it.