RH

Raymond D. Helferty

📍 Chesterfield Township, MI: #11 of 40 inventorsTop 30%
🗺 Michigan: #1,566 of 6,092 inventorsTop 30%
Overall (2004): #134,716 of 270,089Top 50%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6691468 Orifice sealing physical barrier — 2004-02-17