2. If you don't apply for a patent, your income will be less. At present, the government has projects funded by patents.
3. Not applying for a patent means giving up the protection of the law, and it is easy to be stolen by others unless it is protected as a trade secret.
4, but now the cycle of invention application is very long, so we can consider selling it in the public stage. If the utility model and appearance are fast, it can be authorized in half a year.