Robert R. Johnson

📍 Cedar Rapids, IA: #30 of 88 inventorsTop 35%

🗺 Iowa: #238 of 1,020 inventorsTop 25%

Overall (2005): #112,490 of 245,428Top 50%

Patents 2005

Issued Patents 2005

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6920835	Charity collection safe	—	2005-07-26