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:
Jan. 12, 1993
Filed:
Aug. 23, 1991
Applicant:
Inventor:
Donald J Douglas, Toronto, CA;
Assignee:
MDS Health Group Limited, Etobicoke, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
250290 ; 250292 ;
Abstract
A two dimensional RF multipole field formed by a set of parallel rods, e.g. quadrupole rods, serves as an inlet for an ion trap. The field both accepts and stores ions for the trap, and rejects unwanted ions, while the trap is performing an analysis. This greatly increases the duty cycle of the overall system, increasing the system sensitivity.