Tokina filed a patent for a 70-200mm f/four complete frame Coupons lens. This is most very likely the AT-X 70-200mm f/four Pro Forex VCM-S lens that was exhibited during the 2013 Photokina display but was by no means officially released.
 
Olympus submitted patents for two M.Zuiko macro lenses for Micro 4 Thirds: 70mm f/two.8 (still left) and 100mm f/four.five (right).
Olympus also filed patents for 15mm f/2, 17mm f/1.8 and 17mm f/two.eight pancake lenses.
Another Olympus patent describes enlarging the encounter in the Lcd screen when confront recognition is enabled.
Konica Minolta filed a patent for a 8-17mm f/2.eight lens for Four Thirds cameras (16-35mm equivalent).
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