GENEVA, Nov. 30 -- SHENZHEN SUMPRETEC TECHNOLOGY CO., LTD. (704, Building B, Shenye Century Industrial Center, No. 743 Zhoushi Road, Hezhou Community, Hangcheng Street, Bao'an DistrictShenzhen, Guangdong 518100), 深圳尚博特科技有限公司 (中国广东省深圳市宝安区航城街道鹤洲社区洲石路743号深业世纪工业中心B栋704) filed a patent application (PCT/CN2024/098827) for "MULTIFUNCTIONAL UHPC MANHOLE COVER DEVICE BASED ON MULTI-LAYER STRUCTURE DESIGN" on Jun 13, 2024. With publication no. WO/2025/241...