Sigma Patent Application: 60-600mm F4.5-6.3 Sigma Patent Application: 60-600mm F4.5-6.3 February 6, 2020
Tamron Patent Application: 18-55mm F3.5-5.6 for APS-C Mirrorless Tamron Patent Application: 18-55mm F3.5-5.6 for APS-C Mirrorless January 9, 2020
Tamron Patent Application: Full frame mirrorless primes Tamron Patent Application: Full frame mirrorless primes Nov 21, 2019
Sigma Patent Application: 50,40 and 35mm F1.2 for full frame mirrorless Sigma Patent Application: 50,40 and 35mm F1.2 for full frame mirrorless Nov 14, 2019
Sigma patent application for 24, 35 and 40mm primes for the L-mount Sigma patent application for 24, 35 and 40mm primes for the L-mount Oct 31, 2019
Tamron patent application for 25,40 and 85mm mirrorless primes Tamron patent application for 25,40 and 85mm mirrorless primes Oct 31, 2019