There is an authorized patent, and today I suddenly discovered a similar unlicensed patent whose filing date was before mine. Is there any risk of my patent being revoked?

Tell me a few concepts

1. Obtaining a patent does not mean peace in the world

2. The similarity of patents needs to be determined through substantive examination.

3. Prior Art, that is, the concept of disclosed technology, evidence is provided in writing such as foreign patent applications, international newspapers and magazines, which can be used to confirm the date.

Sometimes we even do it for fear of being accused. , but they also think that the patent does not have such market protection value, so they apply for copyright on the drawing or deliberately publish the picture in a newspaper to retain the need for future self-protection.

For patents that have been approved, on the date of announcement, Those who are rebutted internally are called objections

Those who are rebutted after the announcement are called objections

It does not mean that getting a patent will be fine from then on.

Therefore, the determination of true infringement still depends on the content of the patent claim.

Patent rights protection and The struggle and the methods involved are not just a few words, you can write a book similar to the Romance of the Three Kingdoms :-)