YZ

Yoyou Zhai

V& Voest-Alpine Industrieanlagenbau Gmbh &: 2 patents #72 of 281Top 30%
Overall (All Time): #2,197,888 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6508853 Process for the production of metal melts Stefan Dimitrov, Norbert Ramaseder, Wilfried Pirklbauer, Johannes Steins, Ernst Fritz +1 more 2003-01-21
6264883 Plant for the production of metal melts Stefan Dimitrov, Norbert Ramaseder, Wilfried Pirklbauer, Johannes Steins, Ernst Fritz +1 more 2001-07-24