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:
Jul. 30, 2019
Filed:
Jan. 31, 2019
The Trustees of Indiana University, Bloomington, IN (US);
Martin F. Jarrold, Bloomington, IN (US);
Deven L. Shinholt, Pflugerville, TX (US);
Staci N. Anthony, Bloomington, IN (US);
Andrew W. Alexander, Bloomington, IN (US);
The Trustees of Indiana University, Indianapolis, IN (US);
Abstract
A quadrupole mass filter and method for operating the filter are described. Sample ions, each having a mass-to-charge ratio, are passed to a quadrupole at least one AC voltage is applied thereto to separate the ions by incrementally varying a frequency of the at least one AC voltage within a first range of frequencies and, for each of at least some of the incremental frequencies in the first range of frequencies, incrementally varying an amplitude of the at least one AC voltage within a range of amplitudes, wherein each incremental frequency and incremental amplitude pair of the at least one AC voltage creates a different band pass filter in the quadrupole through which produced ions having a different corresponding mass-to-charge ratio pass to a detector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile