Canon filed a patent for a EF-M 70-400mm f/4.5-7.2 STM lens designed for APS-C mirrorless camera.
Canon also filed a patent for a 20-100mm f/4 lens designed for APS-C based cameras.
Canon filed a patent for eliminating the star trails during long time exposures of the night sky.
Tamron filed a patent for a 18mm f/2.8 macro lens designed for 1" sensors (for Nikon 1?).
Konica Minolta filed a patent for a 14-100mm f/3.5-5.6 lens designed for 4/3" cameras.
