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. 24, 1991
Filed:
Sep. 06, 1989
Applicant:
Inventors:
John T Bahns, DeWitt, IA (US);
William C Stwalley, Iowa City, IA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
250283 ; 2504 / ; 376106 ; 376107 ; 376127 ; 376120 ;
Abstract
The method of producing specific cluster ions utilizing an ionization source to produce ions which are then sorted or resolved according to velocity and mass. The selected ions are passed through a growth chamber containing a gaseous vapor of a specified element and are coated by the vapor to provide coated cluster ions. The coated cluster ions are mass selected and held in an ion trap.