For example, if a person obtains a patent for a bicycle, but in fact his protection scope is only the handlebar, then don't use that handlebar, and there will be no infringement.
2. Wait for the patent protection period to expire. The utility model and appearance can be used for up to ten years, and the invention can be used for up to twenty years. You can use it at will after it expires. Some inventions may fail in a year or two, so we might as well wait.
Check the legal status of the patent to see if it is still valid. Many patents do not pay annual fees for three to five years, which leads to automatic invalidation and can also be used casually.