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|  | Chuncheng LIU |  
| patent application, reexamination, invalidation, infringement analysis, litigation, FTO analysis (machinery, mechanical and electrical, material, metallurgy), trademark and copyright.... |  
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|  | Xiangkun ZHANG |  
| Patent (machinery, mechanical and electrical, material, metallurgy), patent invalidation, patent infringement analysis, patent litigation... |  
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|  | Chunyan LIU |  
| patent application, invalidation and infringement analysis (semiconductor, communication, home electronic appliances, medical apparatus, battery, ceramics), trademark.... |  
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|  | Jun LIN |  
| patent application, reexamination, invalidation, infringement analysis,third party opinions, patent searches,patent mining and FTO analysis (Chinese applications, Japanese applications), design registration application.... |  
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