Canon variable curved sensor (sensor curvature is controlled by a vacuum pump) and a cinema-lock EF mount patents
Canon 135mm f/2 lens with apodization filter patent (2016-218444)
Canon 35mm f/1.8 full frame and APS-C lenses patent
Canon 18-105mm f/4-5.6 lens with a built-in wide angle converter patent (the lens becomes 15mm with the converter)
Canon lens patent for a new PowerShot compact camera:
