JB

James Bartkowiak

📍 York, PA: #359 of 933 inventorsTop 40%
🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%
Overall (All Time): #1,856,181 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11447878 Hydrogen generating cell 2022-09-20
5662387 Cutter head and method for mining hard rock 1997-09-02