Applying for a patent can increase the value of the technology, and the protection is well-founded. The application fee does not cost a few thousand yuan. With a simple investment, after subsequent transfer or licensing, the income and investment will not be of the same order of magnitude. With patent protection, the manufacturers you cooperate with can also protect the products they produce, so that the effect of selling the technology will be better. If you consider long-term profits, you can invest in the technology or license production