DR

David Matthew Roenspies

PL Progress Rail Locomotive: 2 patents #1 of 38Top 3%
📍 Elburn, IL: #4 of 13 inventorsTop 35%
🗺 Illinois: #1,558 of 9,120 inventorsTop 20%
Overall (2019): #179,512 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10421472 Visual diagnostic system for railroad network Alexander Shubs, Jr., James David Seaton 2019-09-24
10196078 Diagnostic system for a rail vehicle Alexander Shubs, Jr. 2019-02-05