Zirui LI

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Boltless fastener assembly for heavy haul railway with axle load of...
- Patent number 11,162,227
- Issue date Nov 2, 2021
- CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED RAILWAY ENGINEERING RES...
- Junheng Xiao
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
DAMPING ANTI-FATIGUE AGING CARBON DIOXIDE-BASED POLYURETHANE ELASTO...
- Publication number 20250101163
- Publication date Mar 27, 2025
- HEBEI TIEKE YICHEN NEW MATERIALS TECHNOLOGY CORPORATION LIMITED
- Quanxiao Dong
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
BOLTLESS FASTENER ASSEMBLY FOR HEAVY HAUL RAILWAY WITH AXLE LOAD OF...
- Publication number 20210230809
- Publication date Jul 29, 2021
- CHINA ACADEMY OF RAILWAY SCIENCES CORPORATION LIMITED RAILWAY ENGINEERING RES...
- Junheng XIAO
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES