To qualify for patent protection, an invention must be new, useful and non-obvious.
1. Novelty: Any invention or technology which has not been anticipated by publication in any document or used in the country or elsewhere in the world before the date of filing of patent application.
2. Inventive Step: There must be a feature of an invention that involves technical advancement as compared to the existing knowledge.
3. Industrial application: The invention should be efficient enough of being made or used in an industry. Therefore, an invention must be useful to be patentable.