1. Novelty means that before the filing date, the same invention has not been published in domestic and foreign publications, and it has been published in China.
Used or otherwise known to the public, and others have not applied to the Patent Office for a similar invention-creation, and it is not recorded in the patent application documents published after the filing date.
2. Creativity means that the invention has substantial features and progress compared with the prior art before the filing date.
3. Practicality means that the invention can be manufactured or used and has positive effects.
Therefore, patent applicants should pay attention to technical confidentiality before applying for a patent, do not hold technical exchange meetings, technical or product appraisal meetings, do not participate in exhibitions and trade fairs, and do not publish or sell invented products in publications to avoid premature disclosure of technical content and loss of novelty. In addition, when applying for a patent, you should consult relevant patent documents and other technical materials. Specifically judge whether the invention meets the requirements of "three natures". Only when the invention meets the requirements of "three natures" can it meet the requirements of applying for a patent.
However, according to the provisions of Article 25 of the Patent Law, no patent right shall be granted for the following items:
1, scientific discovery;
2. Rules and methods of intellectual activities;
3. Diagnosis and treatment of diseases;
4. Animal and plant varieties;
5. Substances obtained by nuclear exchange method.
The production method of the products listed in item 4 of the preceding paragraph may be granted a patent right in accordance with the provisions of this law.