Zisheng Cao

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Beijing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Task processing method and device
- Patent number 12,288,092
- Issue date Apr 29, 2025
- Lenovo (Beijing) Limited
- Zisheng Cao
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Video-based system and method of elevator door detection
- Patent number 8,660,700
- Issue date Feb 25, 2014
- Otis Elevator Company
- Zhen Jia
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
TASK PROCESSING METHOD AND DEVICE
- Publication number 20240004700
- Publication date Jan 4, 2024
- Lenovo (Beijing) Limited
- Zisheng CAO
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VIDEO-BASED SYSTEM AND METHOD OF ELEVATOR DOOR DETECTION
- Publication number 20110202178
- Publication date Aug 18, 2011
- Otis Elevator Company
- Jia Zhen
- B66 - HOISTING LIFTING HAULING