MH

Mark S. Harkema

RA Rapistan Systems Advertising: 2 patents #4 of 35Top 15%
📍 Grand Rapids, MI: #9 of 105 inventorsTop 9%
🗺 Michigan: #566 of 5,720 inventorsTop 10%
Overall (2005): #44,629 of 245,428Top 20%
2
Patents 2005

Issued Patents 2005

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6935483 Metal frame sorter with wear strip Frank Veit, Rhonda J. Verploegen 2005-08-30
6860383 Positive displacement sorter Frank Veit, Rhonda J. Verploegen, Thanh Van Nguyen 2005-03-01