This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Dongguan Littelfuse Electronics Company Limited. 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: Qingbei Li and PPTC Material Innovation
Introduction
Qingbei Li is an inventor associated with Dongguan, China, and Dongguan Littelfuse Electronics Company Limited. His patent work concerns polymer positive temperature coefficient (PPTC) materials designed for electrical protection applications.
Latest Patents
The provided information lists 1 patent for Qingbei Li: “High Hold Current and High Voltage Endurance PPTC Material, Device, and Method of Fabrication.” The invention describes a PPTC material with a polymer matrix and high-temperature polymer, along with conductive filler, an arc suppressant, and a high-temperature antioxidant. These components are incorporated into the matrix to support high hold-current performance and voltage endurance.
Career Highlights
Li’s listed patent reflects work on the composition and fabrication of PPTC materials. The invention addresses material properties relevant to devices used for electrical protection.
Collaborations
The provided information identifies Jianhua Chen and Flory Zhou as Li’s coworkers. Their names are associated with his professional context, though specific roles in the patent are not stated.
Conclusion
Qingbei Li’s listed invention focuses on improving the performance of PPTC materials through a combination of polymer, conductive, and protective components.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile