JB

John E. Berry

HR Harbison-Walker Refractories: 2 patents #7 of 22Top 35%
Overall (All Time): #2,134,803 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D591778 Refractory block John J. Stephansky 2009-05-05
D567829 Refractory block John J. Stephansky 2008-04-29