Roger F. J. Adam

📍 Pittsburgh, PA: #3,179 of 7,570 inventorsTop 45%

🗺 Pennsylvania: #30,495 of 74,527 inventorsTop 45%

Overall (All Time): #2,331,138 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4836613	Cutterhead for water jet assisted cutting	—	1989-06-06
4653810	Pre-bolting system for underground mines	—	1987-03-31