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:
Feb. 10, 2015
Filed:
Sep. 08, 2011
Applicant:
Anastassios Giannakopulos, Bremen, DE;
Inventor:
Anastassios Giannakopulos, Bremen, DE;
Assignee:
Thermo Fisher Scientific (Bremen) GmbH, Bremen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/02 (2006.01); B03C 3/00 (2006.01); G01N 27/62 (2006.01);
U.S. Cl.
CPC ...
B03C 3/00 (2013.01); G01N 27/624 (2013.01);
Abstract
A method and apparatus for high resolution separation of ions based on their high field and low-field mobility properties is described. An elongate ion separation channel is defined by a plurality of channel walls. First and second channel walls have first and second spaced ion separation electrode assemblies respectively. A power supply applies a periodic asymmetric potential to one or both of the electrode assemblies so as to generate a periodically asymmetric electric field in the channel for ion mobility separation. The channel walls define an ion separation channel of substantially helical shape.