Sonja F. O'Brien

📍 Greendale, WI: #90 of 157 inventorsTop 60%

🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%

Overall (All Time): #3,718,903 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5642817	Hanging device for belts	—	1997-07-01