QC

Qianyan Cheng

📍 Sacramento, CA: #13 of 167 inventorsTop 8%
🗺 California: #7,928 of 65,961 inventorsTop 15%
Overall (2022): #66,018 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11408198 Electrified mortise lock for sliding door — 2022-08-09
11377874 Auto-latching/locking mortise lock for sliding door — 2022-07-05
11306510 Cylinder assembly with rotating winged latch bolt for sliding door lockset — 2022-04-19