John A. Grassi

Caterpillar: 1 patents #61 of 303Top 25%

📍 Princeville, IL: #2 of 3 inventorsTop 70%

🗺 Illinois: #1,480 of 5,663 inventorsTop 30%

Overall (2004): #191,055 of 270,089Top 75%

Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6675761	Ring band for a piston	—	2004-01-13