This industry has begun to be represented by third parties. There are fewer and fewer full-time project application workers. The industry threshold is high and the requirements for the overall quality of practitioners are high. Experience and connections are essential for long-term development. Dharma door, especially to accumulate more connections. From ZhiQ user: Mr. Jing
For long-term development, it may be better to switch to patents. From ZhiQ user: Mr. Liang