What are the acts of impersonating patents?

When applying for a patent, the patentee should pay attention to the fact that his patent is not infringed, but what are the manifestations of patent infringement? I believe many people don't know whether they have infringed the patent right of others, and the patentee often doesn't know whether his patent right has been infringed by others. So what are the acts of impersonating patents? What are the acts of impersonating patents? (1) manufacturing or selling non-patented products marked with patent marks; (two) after the patent right is declared invalid, the patent mark is continued to be marked on the products manufactured or sold; (3) Non-patented technology is called patented technology in advertisements or other promotional materials; (4) Non-patented technology is called patented technology in the contract; (5) Forging or altering patent certificates, patent documents or patent application documents.