Patents by Inventor Guangxiang Wu

Guangxiang Wu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Linear Ion Trap with Four Planar Electrodes
    Publication number: 20090261247
    Abstract: A rectilinear ion trap includes a first pair of spaced planar RF electrodes, mounted in parallel and a second pair of spaced planar electrodes, mounted in parallel and orthogonal to the first pair of electrodes. The configuration of the pairs of electrodes define an axial direction and a radial direction. The trap further includes an RF source that applies an RF voltage to at least one of the pairs of RF electrodes to generate RF fields to trap ions in the axial and radial directions.
    Type: Application
    Filed: February 7, 2006
    Publication date: October 22, 2009
    Inventors: Robert Graham Cooks, Zheng Ouyang, Yishu Song, Guangxiang Wu