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, 2021
Filed:
Nov. 14, 2019
Applicant:
Thermo Finnigan Llc, San Jose, CA (US);
Inventor:
Edward B. McCauley, Cedar Park, TX (US);
Assignee:
Thermo Finnigan LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 49/02 (2006.01); H01J 49/42 (2006.01);
U.S. Cl.
CPC ...
H01J 49/022 (2013.01); H01J 49/4215 (2013.01);
Abstract
A multipole assembly configured to be disposed in a mass spectrometer includes a plurality of rod electrodes. Each rod electrode included in the plurality of rod electrodes may be made of molybdenum. The multipole assembly further includes a sacrificial anode in electrical contact with a rod electrode included in the plurality of rod electrodes. The sacrificial anode is made of a material having an electrochemical potential that is more negative than the electrochemical potential of the rod electrode.