Patents do not guarnatee production. Sometimes they are done to hold IP.
Shure, but these patents show typical lens designs which penetrate the market since a few years: Standard lenses with a negative front element. This is well known from wide angle lenses for (D)SLRs which use retrofocus designs to give enough space between last lens and image plane.
If I read the patent correctly Canon has decided to use a retrofocus design instead of a double gaussian design to avoid problems with longitudinal CAs: The retrofocus design gives more variability to introduce more lenses/alternative lens geometries to adress longitudinal CA correction without compromising other parameters.
Longitudinal CAs are the main problem with high aperture lenses which aren't easily removed during post processing - I am shure that these patents have a good chance to flow into real products!
Just my 2ct - Best, Michael
Which is also what Zeiss announced a while back, with their 50mm f/1.4 Distagon (Distagon is their retrofocus, normally found in 21-35mm, or 40-65mm on Medium Format).
Either canon's going down the same path, or they're at least going to patent some to block zeiss.