Joel A. O'Brien

HP Henderson Products: 1 patents #9 of 17Top 55%

📍 Elkader, IA: #7 of 8 inventorsTop 90%

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

Overall (All Time): #3,002,686 of 4,157,543Top 75%

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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9353495	Wing plow with rotatable floating connection	Kenneth F. Becicka, Mark S. Hollinrake	2016-05-31