This inventor holds 1 USPTO granted patent. Top assignee: Otis Elevator Company. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Yanchao Niu and Elevator Sheave Liner Innovation.
Introduction
Yanchao Niu is an inventor based in Tianjin, China, associated with Otis Elevator Company. His patent work addresses the replacement and installation of elevator sheave liners, components that interact with elevator ropes.
Latest Patents
Niu is named on 1 patent: “Method for Online Replacement and Method for Installation of Elevator Sheave Liner, and Elevator Sheave Liner.” The invention describes rotating a sheave so a liner section that is not engaged with the elevator rope reaches an operating area. That section can then be detached and replaced, with the process repeated for other sections as needed. The patent also covers a method for installing the liner.
Career Highlights
Niu’s listed invention focuses on enabling liner replacement while the elevator sheave remains in place. The method’s sectional approach provides a defined process for replacing all or selected liner sections.
Collaborations
Niu’s listed coworkers include Ruguang Liu and Xuewei Wang. The patent information provided identifies Otis Elevator Company as his company.
Conclusion
Yanchao Niu’s patent work at Otis Elevator Company centers on a sectional method for replacing and installing elevator sheave liners.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile