There are roughly five kinds of acts of impersonating patents:
1, manufacturing or selling non-patented products marked with patent marks.
2. After the patent right is declared invalid, continue to mark the patent mark 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.
The above is for reference only, hope to adopt ~