DK

David A. Kelley

PD Progressive Dynamics: 2 patents #1 of 8Top 15%
📍 Marshall, MI: #1 of 14 inventorsTop 8%
🗺 Michigan: #263 of 3,452 inventorsTop 8%
Overall (1989): #29,515 of 140,708Top 25%
2
Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D304088 Door operated convenience light for storage areas Delbert J. Corkins, Robert S. Hileman 1989-10-17
4872099 Light fixture Dan Walters, James G. Stephenson 1989-10-03