Hello I have an idea for a product either a new product or to improve and existing product already available by adding my idea to it... How do you go about securing this idea? what does a patent mean? Would I need to have a product made, or would plans / drawings be enough? How do you know the patent is not already owned by someone? Ok I know I could probably google the answers but hopefully someone has already done this and can tell me in plain english how it all works? Thanks in advance.