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:
Apr. 02, 2013
Filed:
Jan. 31, 2011
Jochen Franzen, Bremen, DE;
Gökhan Baykut, Bremen, DE;
Oliver Räther, Lilienthal, DE;
Carsten Stoermer, Bremen, DE;
Evgenij Nikolaev, Moscow, RU;
Jochen Franzen, Bremen, DE;
Gökhan Baykut, Bremen, DE;
Oliver Räther, Lilienthal, DE;
Carsten Stoermer, Bremen, DE;
Evgenij Nikolaev, Moscow, RU;
Bruker Daltonik GmbH, Bremen, DE;
Abstract
An ion cell having an axis includes a sheath of individual electrodes that extends along the axis and defines an internal volume. Adjacent individual electrodes are electrically insulated from each other. The individual electrodes each receive a DC potential and RF voltage. At least some of the individual electrodes have a width that varies in the axial direction such that an electrical effect on an axis potential varies along the axis of the ion cell.