Sigma 55mm, 65mm and 70mm f/1.4 lens patents spotted

Sigma patented three fast Full Frame primes:

• 55mm f/1.4
• 65mm f/1.4
• 70mm f/1.4

All three for mirrorless systems (via Asobinet)

And Digicameinfo also spotted this patent for new Sigma 20/22/24/28mm f/2.’ primes.