Right, Canon has super computers running around the clock trying to find a optical formula out of the billions of possibilities that procuces improved results. I would then expect them to kick out promising formulas and look at them more closely,perhaps build a few models, and if the design passes, apply for a patent.
This protects the design that they have spent so much money to discover.
As for putting it into production, then a new set of parameters come into play. The market, cost to produce, and cost of tooling versus expected sales. Only a tiny few get by that hurdle.