DH

David C. Humphreys

TP Tamko Building Products: 11 patents #1 of 30Top 4%
📍 Joplin, MO: #15 of 249 inventorsTop 7%
🗺 Missouri: #1,812 of 23,789 inventorsTop 8%
Overall (All Time): #449,150 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Showing 1–11 of 11 patents

Patent #TitleCo-InventorsDate
11813703 On demand three dimensional roof system manufacturing Chris Freeborg 2023-11-14
11454026 Lightweight roofing shingle and method for making same 2022-09-27
11186747 System and method for reducing viscosity variations in roofing asphalt 2021-11-30
11078669 Applying a release material to a shingle during manufacturing Chris Freeborg, Kyle Davis, Alex Alekhine 2021-08-03
10914073 Curtain die for applying a liquid release agent to a shingle substrate Christopher Freeborg, Alex Alekhine, Kyle Davis 2021-02-09
10857759 Peel and stick waterproofing material Michael Shifferd 2020-12-08
10697179 Liquid release agent and associated methods of application 2020-06-30
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
9821532 Peel and stick waterproofing material Michael Shifferd 2017-11-21
9534378 Peel and stick waterproofing material Steven L. Russell, Michael Shifferd 2017-01-03