Patent searching can be difficult for the general public - but it is free to do. There are professionals you can hire to do it for you. Check out the Patent Office website - www.uspto.gov where you can conduct "key word" searching. You can also search using the "Google patents" website - www.google.com/patents where you can conduct "key word" searching. There are many other sites for searching - but these two are popular. Just because you don't find a patent on your idea - does not mean that you can get a patent. Your invention must be new, useful and not obvious to a person skilled in the field of the invention - based on what was already known.
Answered on Apr 30th, 2015 at 7:50 AM