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:
Jun. 02, 2009
Filed:
Feb. 07, 2007
Nikolai Konenkov, Ryazan, RU;
Frank Londry, Omemee, CA;
Chuanfan Ding, Vancouver, CA;
Donald J. Douglas, Vancouver, CA;
Nikolai Konenkov, Ryazan, RU;
Frank Londry, Omemee, CA;
Chuanfan Ding, Vancouver, CA;
Donald J. Douglas, Vancouver, CA;
The University of British Columbia, Vancouver, CA;
MDS Analytical Technologies, a business unit of MDS Inc., Concord, CA;
Abstract
A mass spectrometer and a method of operating and building same is provided in which a hexapole component is deliberately added to a substantially quadrupole field. This can result in unwanted octopole and dipole fields also being added to the substantially quadrupole field. Modifications to the mass spectrometer as well as ways of operating the mass spectrometer are provided for dealing with the unwanted octopole and dipole fields.