For basic research, the is number is larger- it was around three decades from Einstein's explanation of the photoelectric effect to the commercialization of cameras based on it.

Another problem with fundamental research -- from a commercial corporation's point of view -- is that its results may not be applicable at all to products in your target market. For example, you might start by researching the formation of clouds in the atmosphere, and end up with major breakthroughs in atomic theory. Those are interesting, to be sure, but how are you going to sell that ?

This is but one of the reasons why large corporations tend to stay away from fundamental research, unless they can write it off their taxes or something.