Filing for a Patent?

The best initial way in order to attempt to determine if your invention is novel and patentable is to have a patentability/novelty search performed. The search will uncover patents which are the closest to your invention - you should consult a patent professional - attorney/agent in order to help you interpret the search results. If you then conclude that your invention is worth pursuing in order to hopefully achieve a patent, you need to file a patent application with the Patent Office in your home country.