QC

Qianyan Cheng

📍 Sacramento, CA: #19 of 156 inventorsTop 15%
🗺 California: #12,239 of 60,411 inventorsTop 25%
Overall (2018): #111,602 of 503,207Top 25%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10081966 Barn door with privacy lock 2018-09-25
10066420 Easily-assembled modular door lock 2018-09-04