Legal basis:
Article 24 An invention-creation for which an application for a patent is filed within six months before the date of application does not lose its novelty in any of the following circumstances:
(1) It was exhibited for the first time at an international exhibition sponsored or recognized by the China Municipal Government;
(2) It was first published at a specified academic conference or technical conference;
(3) others disclose the contents without the consent of the applicant.
As far as I know, you published a theory or principle on a website or a newspaper, which should be the essence of your invention. Besides, you did not publish it at a specified academic conference or technical conference, so it has become public and lost its novelty.
2. Because you don't have this patent right, you don't have the right to enjoy the profit distribution of this product. Moreover, if you publish it on the website, it is a contribution to the public, and everyone can use it.
3. Therefore, you can't sue
4. The only thing you can do is to invalidate the same patent as your invention, provided that your disclosure date is before the patentee's application date, but it doesn't mean anything to you economically.