David E. Ewel

📍 Mankato, MN: #4 of 17 inventorsTop 25%

🗺 Minnesota: #2,481 of 6,792 inventorsTop 40%

Overall (2018): #446,881 of 503,207Top 90%

Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10160428	Trailer break-away switch	—	2018-12-25