JR

John J. Roxburgh

UG United States Gypsum: 2 patents #163 of 432Top 40%
📍 Chicago, IL: #5,168 of 13,327 inventorsTop 40%
🗺 Illinois: #34,584 of 84,256 inventorsTop 45%
Overall (All Time): #1,853,014 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11414352 Method for making a lightweight gypsum composition with internally generated foam and products made from same David D. Pelot, Samar Emami, Robert H. Negri, Juan Carlos Ruiz Castaneda, Christopher R. Nelson +5 more 2022-08-16
10737981 Method for making a lightweight gypsum composition with internally generated foam and products made from same Samar Emami, Salvatore C. Immordino, Robert H. Negri, David D. Pelot, Jeffrey F. Grussing +3 more 2020-08-11