DH

David C. Humphreys

TP Tamko Building Products: 2 patents #1 of 4Top 25%
📍 Joplin, MO: #4 of 22 inventorsTop 20%
🗺 Missouri: #332 of 2,707 inventorsTop 15%
Overall (2019): #180,687 of 560,194Top 35%
2
Patents 2019

Issued Patents 2019

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10428524 Lightweight roofing shingle and method for making same 2019-10-01
10415248 Shingle with headlap mask Thomas M. King, Rodney Lewis 2019-09-17