DB

Doug Blackburn

UG United States Gypsum: 1 patents #7 of 35Top 20%
📍 Port Clinton, OH: #2 of 4 inventorsTop 50%
🗺 Ohio: #2,058 of 6,556 inventorsTop 35%
Overall (2016): #416,375 of 481,213Top 90%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9346996 Oil well cementing products with synthetic gypsum and methods Dennis Mark Lettkeman, John W. Wilson, Brian K. Ball, Raymond A. Kaligian, Mike L. Cloud 2016-05-24