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:
Sep. 08, 2009
Filed:
Jun. 21, 2002
Robert Harold Bateman, Knutsford, GB;
John Brian Hoyes, Stockport, GB;
James Ian Langridge, Sale, GB;
Jason Lee Wildgoose, Heaton Mersey, GB;
Robert Harold Bateman, Knutsford, GB;
John Brian Hoyes, Stockport, GB;
James Ian Langridge, Sale, GB;
Jason Lee Wildgoose, Heaton Mersey, GB;
Micromass UK Limited, Manchester, GB;
Abstract
A mass spectrometer is disclosed comprising an ion mobility spectrometer in combination with a quadrupole mass filter which is scanned in synchronization with the pulsing of ions into the ion mobility spectrometer thereby enabling ions having a particular charge state to be preferentially transmitted. Another embodiment replaces the quadrupole mass filter with an axial time of flight mass filter and an injection electrode.