DG

David M. Graf

EG Esco Group: 2 patents #1 of 31Top 4%
📍 Scappoose, OR: #2 of 8 inventorsTop 25%
🗺 Oregon: #985 of 4,132 inventorsTop 25%
Overall (2018): #156,414 of 503,207Top 35%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10022724 Stepped shredder hammers Michael R. Weeks, Christoper M. Carpenter 2018-07-17
9855560 Hammer for shredding machines Michael R. Weeks, John P. Hoice, Daniel R. Morrow, Terry L. Briscoe, Christopher M. Carpenter 2018-01-02