Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DH

David Hagelgans — 1 Patent in 2021

CGCertainteed Gypsum: 1 patents #3 of 30Top 10%
Aschaffenburg, PA: #2 of 2 inventorsTop 100%
Overall (2021): #484,653 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

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