HC

Hua Chan

3M: 1 patents #7,233 of 11,543Top 65%
Overall (All Time): #2,181,057 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6906009 Drilling fluid containing microspheres and use thereof Madeline P. Shinbach, Domasius Nwabunma, Andrew D'Souza 2005-06-14
6583731 Fault detection for traffic light systems using electronic lighting elements Tai Leong Cheng, Muthuraman Ramaswamy 2003-06-24