GENEVA, Aug. 4 -- BEIJING ZITIAO NETWORK TECHNOLOGY CO., LTD. (0207, 2/F, Building 4, Zijin Digital ParkHaidian District, Beijing 100190), 北京字跳网络技术有限公司 (中国北京市海淀区紫金数码园4号楼2层0207), DOUYIN VISION CO., LTD. (Room B-0035, 2/F, No. 3 Building, No. 30, Shixing RoadShijingshan District, Beijing 100041), 抖音视界有限公司 (中国北京市石景山区实兴大街30号院3号楼2层B-0035房间) filed a patent appli...