James L. Hamann

PE Pettibone: 1 patents #4 of 22Top 20%

📍 Eldridge, IA: #38 of 62 inventorsTop 65%

🗺 Iowa: #8,735 of 15,303 inventorsTop 60%

Overall (All Time): #3,760,472 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5588171	Drain line cleaning apparatus	—	1996-12-31