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Youji Ma

Delphi Technologies: 1 patents #2,130 of 4,124Top 55%
Overall (All Time): #3,316,469 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7484443 Precision turning process for hatted brake rotor Michael F. Potter, Gary D. Bruff, Chiung Alex Lee, Randy Wolin 2009-02-03