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Patent portfolio assigned to CloudWalk Technology (verified via public assignee records). CloudWalk is one of China's 'Four AI Dragons' alongside SenseTime, Megvii and Yitu (widely documented). No specific named customers sourced (mainly government/security and financial-sector deployments). Patents confirmed assigned to Guangzhou Cloudwalk Artificial Intelligence Technology on Google Patents (CN109271950B, CN109447698B); no exact count obtained.