RG

Ron Grinvald

📍 Dongguan, CN: #177 of 470 inventorsTop 40%
Overall (2021): #285,056 of 548,734Top 55%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10974084 Reusable respirator mask with refillable filter Anna Grinvald, David Chen 2021-04-13