Can I apply for a patent for inventing some small things?

Yes, you can.

The conditions for applying for a patent are as follows:

1, not illegal; In other words, the applied patent must be a product within the scope of national legal protection.

2. It conforms to the relevant provisions of the Patent Law and its detailed rules for implementation, and if it meets the requirements of novelty, creativity and practicality, it does not belong to the project whose patent right is explicitly denied by the Patent Law.

Patent application is a necessary procedure for obtaining patent right. To obtain a patent right, the applicant shall file an application with the State Patent Office, which shall approve and issue a certificate. When filing a patent application with the State Patent Office, the applicant shall also submit a series of application documents, such as the request, specification, abstract and patent claim. In terms of patent application, the provisions of the patent laws of all countries in the world are basically the same.