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:
May. 21, 2002
Filed:
Sep. 24, 1998
Applicant:
Inventors:
Jae C. Schwartz, San Jose, CA (US);
John Edward Philip Syka, Charlottesville, VA (US);
Assignee:
Thermo Finnigan LLC, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/942 ;
U.S. Cl.
CPC ...
H01J 4/942 ;
Abstract
An ion transfer assembly for transferring ions from an atmospheric pressure ion source into an ion trap mass spectrometer with reduced random noise during analysis of the transferred ions. A method of reducing noise due to charged particles, undesolvated charged droplets, or ions in an ion trap mass spectrometer connected to an atmospheric pressure ionization source.