JM

John R. Metcalf

DR Dresser-Rand: 1 patents #118 of 306Top 40%
📍 Houston, TX: #12,319 of 21,073 inventorsTop 60%
🗺 Texas: #73,555 of 125,132 inventorsTop 60%
Overall (All Time): #3,718,875 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5642753 Valve unloader assembly Ethan P. Thistle, Michael Decerbo 1997-07-01