Most inventions are made possible by those inventors who have proceeded us. No one knows who made many of the earliest inventions - like clothes, the lever, the wheel, how to make and keep fire, to name just a few. Most inventors do not get credit for their ideas. That was true in the past and today. In the case of today's inventors the reason is simple, most inventors lack the other skills they need to let people know what they have created and why their invention is better than previous inventions.
Many inventions have little or nothing to do with science.
On the other hand an understanding of science is often needed to make your invention work. And it is equally important to be able to make the invention at a price that people can afford. Science will help you make choices on the best way and materials to make your invention. Understanding business is also important. Most inventors have to make and sell the invention themselves.