Douglas B. Guinn

OM Outboard Marine: 3 patents #126 of 426Top 30%

📍 Shorewood, WI: #80 of 202 inventorsTop 40%

🗺 Wisconsin: #13,258 of 40,088 inventorsTop 35%

Overall (All Time): #1,668,055 of 4,157,543Top 45%

Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
4932795	Electrically conductive plastic bushings for marine propulsion devices	—	1990-06-12
4604068	Marine propulsion device lower unit including propeller bearing member anode	—	1986-08-05
4549949	Marine propulsion device including cathodic protection	—	1985-10-29