In the patent law an invention is a solution of a technical problem, satisfying the requirements of novelty, inventive step (non-obviousness) and industrial applciability. A subject of an invention may be a device, a method, a substance or a composition of substances, a biological material.
Exclusive right to an invention is obtainable by means of a patent. Patents are granted by authorised national or international offices based on a decision of a patent examination resulting from consideration of a patent application composable in accordance with definite requirements.
Existence of a patent will allow you to prohibit others using your invention in commerce without your permission. You will also be able to commercialize your invention by means of licencing or sale.
Every patent has territorial effect, therefore a patent should be obtained for each territory where protection of your invention is necessary.