Robert Otterson

📍 Portland, OR: #3,205 of 9,213 inventorsTop 35%

🗺 Oregon: #8,503 of 28,073 inventorsTop 35%

Overall (All Time): #1,246,220 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
7513264	Flat surface washing apparatus	—	2009-04-07
7479192	Flat surface washing apparatus	—	2009-01-20
7308900	Flat surface washing apparatus	—	2007-12-18
4372569	Single wheel trailer support	—	1983-02-08