The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 21, 2026
Filed:
Nov. 24, 2025
Fudan University, Shanghai, CN;
Lin Wang, Shanghai, CN;
Runlong Cai, Shanghai, CN;
Yueyang Li, Shanghai, CN;
Yiliang Liu, Shanghai, CN;
Jun Zheng, Shanghai, CN;
FUDAN UNIVERSITY, Shanghai, CN;
Abstract
A system and method for analyzing the size distribution and chemical composition of neutral clusters below 3 nm, which achieves efficient sampling based on a core sampling method. The system utilizes the high charging efficiency of the unipolar charging device to charge the nanoparticles and efficiently transport them to the inlet of the nanoparticle electrical mobility size classification device. Through a specialized aerodynamic design, the nanoparticles pass through the electric field between the electrode plates and are efficiently transmitted to both the particle number concentration detector and the chemical composition detector, demonstrating excellent application prospects.