CC

Chia-Kan Chang

AC Asia Optical Co.: 8 patents #55 of 366Top 20%
SC Sintai Optical (Shenzhen) Co.: 8 patents #8 of 159Top 6%
SS Sig Sauer: 2 patents #49 of 110Top 45%
Overall (All Time): #500,716 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
11530900 Sighting system Hung-Chi Chou, Chia-Chi Tang 2022-12-20
11060816 Digital turret ballistic aiming system Andrew W. York, Gregory S. Smith, Richard Bradley Brumfield, Joseph Fruechtel 2021-07-13
10809441 Optical indicating structure 2020-10-20
10767962 Digital turret ballistic aiming system Andrew W. York, Gregory S. Smith, Richard Bradley Brumfield, Joseph Fruechtel 2020-09-08
10578400 Sight Sung-Po Cheng, Chin-Teng Lin, Shang-Yung Liang 2020-03-03
10495415 Sight Hung-Chi Chou, Sung-Po Cheng 2019-12-03
10466735 Knob structure Tsung-Mou Tsai 2019-11-05
10180698 Knob structure Tsung-Mou Tsai 2019-01-15
9798156 Sight 2017-10-24
9151569 Sight with resilient member around frame screw Yung-Chin Lin 2015-10-06