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:
Mar. 23, 2004
Filed:
Jan. 20, 2003
Applicant:
Inventor:
Damian Twerenbold, Boudry, CH;
Assignee:
GenSpec SA, Boudry, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 5/944 ; H01J 4/940 ;
U.S. Cl.
CPC ...
B01D 5/944 ; H01J 4/940 ;
Abstract
This invention relates to a quadrupol ion trap mass spectrometer with improved sensitivity for massive molecules by using cryogenic particle detectors as molecule detectors. Cryogenic particle detectors have a mass independent detection efficiency and do not show a decrease of detection efficiency for increasing molecule mass as compared to ionizing detectors which are used in common quadrupol ion trap mass spectrometers.