JC

John Calkins

CE Certainteed: 1 patents #9 of 26Top 35%
📍 Wayne, PA: #14 of 54 inventorsTop 30%
🗺 Pennsylvania: #1,500 of 5,512 inventorsTop 30%
Overall (2002): #190,003 of 266,432Top 75%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6352288 Thrust and torque resistant pipe joint — 2002-03-05