CH

Charles H. Helein

📍 Reston, VA: #356 of 864 inventorsTop 45%
🗺 Virginia: #12,642 of 34,511 inventorsTop 40%
Overall (All Time): #2,364,410 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D271598 Doll 1983-11-29
D271405 Doll 1983-11-15