It`s quite possible a product doesn`t exist yet, but that doesn`t mean it should.
The most important Q is whether it solves a big problem at an affordable price.
A minimum to protect yourself is to document the date of your invention and have it witnessed by 1-2 trustworthy non-relative persons. It takes a lot more than just a good idea to make any money from it: prototyping, manufacturing, marketing etc...All that cost money, a lot of it, before one sees a profit, if ever.
Browse inventnet.com archive to get smart about inventing/patenting etc...
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