RD

Roger DeGreef

UN Unknown: 4 patents #4,220 of 83,584Top 6%
📍 Washington Township, MI: #29 of 92 inventorsTop 35%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,508,380 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9377275 Armor plated device — 2016-06-28
8402875 Armor plated device — 2013-03-26
5957172 Automated mobile sandbag unit Richard DeGreef 1999-09-28