George M. Bretz

KO Koppers: 2 patents #22 of 126Top 20%

📍 Verona, PA: #45 of 111 inventorsTop 45%

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

Overall (All Time): #2,366,626 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4331448	Gasification reactor and feed apparatus	—	1982-05-25
4197092	High pressure coal gasifier feeding apparatus	—	1980-04-08