2. Company B disclosed the patent in China and obtained the authorization in China, so Company A still used the technology, which caused infringement. If it is only disclosed without authorization, Company A cannot be regarded as infringement, but after authorization, Company B can trace it back to Company A and be regarded as infringement.
3. When it is found that Company A uses the patent, Company B can file an application in China, and at the same time, it must file a priority application to obtain authorization, and then it can be protected by law.
The products produced by company B using this new model have infringed the invention patents of company A, and they can only be produced with the permission of company A. ..