Company Filing History:
Years Active: 2023-2025
Title: Changhua Zhan: Innovator in Microscale Collector-Injector Technologies
Introduction
Changhua Zhan is a notable inventor based in Ann Arbor, MI (US). He has made significant contributions to the field of environmental sampling technologies. His innovative work focuses on developing microscale devices that enhance the efficiency of vapor sampling.
Latest Patents
Changhua Zhan holds a patent for "Microscale collector-injector technologies for passive environmental vapor sampling and focused injection." This invention features a microscale collector and injector device that includes a microscale passive pre-concentrator (μPP) and a microscale progressively-heated injector (μPHI). The μPP device consists of first and second substrate portions, a first collection material, a μPP heater, and an outlet. The first substrate portion defines an array of microscale diffusion channels, while the second substrate portion is in thermal communication with the μPP heater. The μPHI device comprises third and fourth substrate portions, a second collection material, and multiple μPHI heaters, all designed to work in tandem for effective environmental sampling.
Career Highlights
Changhua Zhan is affiliated with the University of Michigan, where he continues to advance his research and development efforts. His work has garnered attention for its potential applications in environmental monitoring and analysis.
Collaborations
He has collaborated with esteemed colleagues such as Edward T. Zellers and Robert W. Hower, contributing to the advancement of innovative technologies in their respective fields.
Conclusion
Changhua Zhan's contributions to microscale collector-injector technologies exemplify the intersection of innovation and environmental science. His work not only enhances vapor sampling techniques but also paves the way for future advancements in the field.