HH

Holger Haddenhorst

AL Alcoa: 2 patents #200 of 632Top 35%
📍 Gelsenkirchen, DE: #58 of 201 inventorsTop 30%
Overall (All Time): #2,190,721 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6773666 Al-Si-Mg-Mn casting alloy and method Jen C. Lin, Que-Tsang Fang, Carl E. Garesche 2004-08-10
6733566 Petroleum coke melt cover for aluminum and magnesium alloys Que-Tsang Fang, Jen C. Lin, Timothy A. Kuhn 2004-05-11