This inventor holds 1 USPTO granted patent and 3 published patent applications. Top assignee: Vrb Energy Inc.. 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: Yongkai Han: Inventor of a Bipolar Plate Gas-Tightness Testing Device.
Introduction
Yongkai Han is an inventor based in Beijing, China. His work includes a utility model for testing the gas tightness of bipolar plates, and he is associated with Vrb Energy Inc.
Latest Patents
Han is credited with 1 patent: “Device for Testing Gas Tightness of Bipolar Plate.” The utility model describes a fixture with a base plate and a cover plate that form a test space for holding a bipolar plate. Gas enters the space through an inlet in either plate. A liquid placing plate sits against the side of the bipolar plate facing away from the inlet and contains multiple through-recesses for holding liquid. This arrangement provides a way to test the plate’s gas tightness.
Career Highlights
Han’s listed patent focuses on a testing device for bipolar plates, components used in energy technologies. The available information associates him with Vrb Energy Inc.
Collaborations
Dehao Wang and Shuai Dong are identified as Han’s coworkers.
Conclusion
Yongkai Han’s recorded invention is a utility model designed to test bipolar plate gas tightness, reflecting his contribution to practical testing equipment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile