JF

John R. Frederick

JD Joy Mm Delaware: 2 patents #2 of 2Top 100%
📍 Washington, PA: #6 of 48 inventorsTop 15%
🗺 Pennsylvania: #640 of 5,512 inventorsTop 15%
Overall (2002): #58,555 of 266,432Top 25%
2
Patents 2002

Issued Patents 2002

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6497536 Roof support arrangement for mining apparatus and roof bolting equipment Brad Neilson 2002-12-24
6364148 Storage pod for underground mining machine Brad Neilson 2002-04-02