FC

Frank H. Campbell

NG National Gypsum: 1 patents #36 of 61Top 60%
📍 Matthews, NC: #217 of 379 inventorsTop 60%
🗺 North Carolina: #26,533 of 45,564 inventorsTop 60%
Overall (All Time): #3,579,537 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6221151 Gypsum set accelerator and method of making the same Robert Piasecki, Larry W. Kingston, Edward A. Burkard 2001-04-24