Canon has a patent for displaying information on a LCD screen mounted on a lens similar to the latest Zeiss Batis lenses.
Canon has a patent for expanding the AF points coverage area that was implemented in the recently announced 5D Mark IV camera.
Similar to Nikon, Canon also has a patent for a multi-aperture computational camera.
Canon has a patent for a 20mm f/3.5, 17-90mm f/2-6 and 18-62mm f/2.8-6.7 lenses designed for APS-C cameras.
