Patent · US Active

Electrospraying method with conductivity control

US7972661B2 · kind B2 · utility

56Cited by

104References

16Claims

0Family size

Assignee

Regents of the University of Minnesota · US

Inventors

David Y. H. Pui · Medina, US
Da-Ren Chen · Creve Coeur, US

Key dates

Filing date	Oct 4, 2007
Grant date	Jul 5, 2011
Priority date	—
Expiry date	Feb 18, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05B13/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An electrospraying apparatus and/or method is used to coat particles. For example, a flow including at least one liquid suspension may be provided through at least one opening at a spray dispenser end. The flow includes at least particles and a coating material. A spray of microdroplets suspending at least the particles is established forward of the spray dispenser end by creating a nonuniform electrical field between the spray dispenser end and an electrode electrically isolated therefrom. The particles are coated with at least a portion of the coating material as the microdroplet evaporates. For example, the suspension may include biological material particles.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.