If the date of patent application has not been determined, the paper has been published by the magazine. In the later patent examination process, the examiner will probably retrieve this published paper, pointing out that the content of D has been made public before the patent application date, which leads to the patent application being rejected because it is not novel, so it is impossible to obtain a patent certificate.
Matters needing attention in patent application
Before applying for a patent, it is best to search to determine which inventions belong to the "prior art". If the content of the application has been recorded in the retrieved patent documents or other public publications, it may affect the authorization prospect of the application. In addition, even if there is no literature, the patent application will be rejected if others can determine that it is common knowledge in this field.
Summary: Patent application is a serious problem, which involves the attribution of individual or team labor results. Therefore, you should know more about the situation before applying, so that you can quickly pass the patent application and get the certificate.