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:
Aug. 08, 2006
Filed:
Mar. 10, 2004
Applicants:
Robert Harold Bateman, Knutsford, GB;
Jeff Brown, Cheshire, GB;
Inventors:
Robert Harold Bateman, Knutsford, GB;
Jeff Brown, Cheshire, GB;
Assignee:
Waters Investments Limited, New Castle, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mass spectrometer is disclosed comprising an electric field region Lwherein a time-varying electric field is applied thereto. In a mode of operation a pulse of ionscomprising ions having different mass to charge ratios passes through the electric field region Land the electric field is varied with time such that at least some of the ionshaving different mass to charge ratios subsequently arrive at the extraction or acceleration regionof a Time of Flight mass analyser at substantially the same time.