Tamron
Patent 2012-242504 from Tamron is for a 300mm f/2.8 full frame lens for mirrorless cameras (?):
Tamron 300mm f/2.8 full frame lens for mirrorless cameras patent
Canon
Patent 2012-247451 from Canon is for a 50mm f/1.2 lens:
- Canon 50mm f/1.2 full frame lens patent (for DSLR cameras)
The next example is interesting - it looks like Canon filed a patent for a 50mm f/2.0 full frame mirrorless lens:
- Canon 50mm f/2.0 full frame size mirrorless lens patent
Patent 2012-242742 covers several different lenses:
Canon 800mm f/5.6 DO Macro 1:1 lens patent
Canon 400mm f/4 DO Macro 2:1 lens patent
Canon 600mm f/4 DO Macro 1:1 lens patent
Canon 400mm f/4 DO Macro 1:1.4 lens patent
Canon's patent 2012-237877 describes a way to reduce the size of a 100% optical viewfinder:
Sony
Patent 8330851 from Sony is for a SLT camera with a Flip Up mirror mode:
In patent 2012-237966, Sony again describes several lens solution for a curved sensor:
