DS

Douglas C. Steffens

SE Steffens Enterprises: 1 patents #1 of 3Top 35%
📍 Clarksville, MI: #1 of 1 inventorsTop 100%
🗺 Michigan: #3,372 of 9,630 inventorsTop 40%
Overall (2017): #436,072 of 506,227Top 90%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9669689 Folding cargo bay cover for pickup truck Charles J. Steffens, Mark J. Heintskill 2017-06-06