Patent agencies belong to intellectual property agency service companies. In your case, you are trained as a patent agent, and the training of patent agents usually begins with writing application documents for customers. In foreign countries, patent agents are called patent lawyers, so you know that this industry has been dealing with the law.
In addition, whether your company is formal or not cannot be defined by the number of employees. For example, an excellent law firm can help clients win tens of millions of lawsuits, but there may be only a few excellent lawyers, while hundreds of staff in the ordinary legal aid office can only handle some small cases of divorce and inheritance for ordinary people every day, so it is difficult to find room for improvement.
As for the salary, if you can work hard to get the patent agent qualification certificate in Shenzhen, you will have no problem with food and clothing.