HH

Helen N. Han

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 San Jose, CA: #22,480 of 32,062 inventorsTop 75%
🗺 California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,078,234 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4357960 Plumbing method and composition for use in same — 1982-11-09