Norman L. Sand

NR North American Refractories: 1 patents #20 of 40Top 50%

📍 State College, PA: #682 of 1,195 inventorsTop 60%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #3,856,684 of 4,157,543Top 95%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5137189	Porous refractory nozzle and method of making same	Richard Hall	1992-08-11