DH

David Hagelgans

CG Certainteed Gypsum: 1 patents #3 of 30Top 10%
Overall (2021): #484,653 of 548,734Top 90%
1
Patents 2021

Issued Patents 2021

Patent #TitleCo-InventorsDate
11124965 Plaster boards having internal layers and methods for making them James Dimitrakopoulos, Vincent Infante, John Bridenstine, David William Pugh, Ying-Tung Wang +1 more 2021-09-21