→ Canon filed a patent for a camera with a transparent mirror.
→ Sigma filed a patent for a 300mm f/2.8 APO lens.
→ Olympus filed a patent for a 250mm f/5 reflex lens for MFT cameras.
→ Ricoh/Pentax filed patents for three different macro lenses: 60mm f/2.8 SR (full frame), 35mm f/2.8 SR (APS-C)and 90mm f/2.8 SR (645).
→ The latest Canon lens patents are for 35mm f/1.4, 50mm f/1.4 and 50mm f/1.8 designed for APS-C based mirrorless camera.
→ Panasonic filed patents for 65mm f/1.8, 25mm f/1.4, 100mm f / 2, 35mm f/1.8, 43mm f/1.4, 43mm f/1.4 MFT lenses.
→ And finally two more Panasonic patents for MFT zoom lenses: 12-100 mm f/4-5.6 and 12-120mm f/4-5.6.