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. 10, 2003
Filed:
Aug. 08, 2000
Eizo Kawato, Cheadle, GB;
Alan Joseph Smith, Manchester, GB;
Shimadzu Research Laboratory, (Europe), Ltd., Manchester, GB;
Abstract
A quadrupole ion trapping device has a ring electrode ( ) and two end-cap electrodes ( ). Ions are introduced into a trapping region ( ) of the ion trapping device via a hole ( ) in a first of the end-cap electrodes ( ) and are retarded by application of a DC retarding voltage to the second of the end-cap electrodes ( ). The retarding voltage is removed when the retarted ions are about to change their direction of motion towards the first end-cap electrode ( ), and an ion trapping field is established by applying a radio frequency voltage to the ring electrode ( ) when the ions are inside the ion trapping device.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile