How trade mark is differ from …

A patent is a title which provides its owner the right to prevent others from exploiting the invention mentioned in the patent. It does not allow by itself making or selling an invention but it rather gives the right to exclude others from making, using, selling or importing the patented invention.
This monopoly is granted for a specific field, in a defined country and for a maximum of 20 years in return for the full disclosure of the invention with the publication of its technical details.

A trademark is a sign by which a business identifies its products or services and distinguishes them from those supplied by competitors. It can be distinctive words, marks or other features. Its purpose is to establish in the mind of the customer a link between all the different products and/or services that the company offers, and then distinguish them from those supplied by competitors.