How to check whether a patent has been declared by me?

1. You can go to the local intellectual property management department for patent search

2. You can also log on to China National Intellectual Property Administration's website for online patent search

3. You can search for patents through a patent agency.

Is it unknown during research and development? For example, if your project is still under development, will you disclose the information to others? Of course, our bank won't. Therefore, you can't find the relevant information during research and development.

# No matter what method you use to make inquiries, you must pay attention to protecting the relevant information of your invention #