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.:

US 7777180 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 17, 2010

Filed:

Jul. 15, 2008
Applicants:

Herbert Henderson Hill, Jr., Pullman, WA (US);

Maggie Tam, Pullman, WA (US);

Inventors:

Herbert Henderson Hill, Jr., Pullman, WA (US);

Maggie Tam, Pullman, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 49/40 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention includes an ion mobility spectrometer having a liquid filled drift chamber. The chamber has an ionization region partitioned from and an ion separation region by a reversible ion-migration block. An electrical field within the chamber allows ions to migrate toward the electrode collector. Passage of ions from the ionization region is triggered by reversing the block allowing ions to migrate into the ion separation region. The invention includes a method of ion mobility analysis in liquid phase. Ions are mobilized to migrate through a drift liquid and are detected at an end of a drift chamber. The invention also includes a method of generating ions in a sample. A sample containing molecules in a first solvent is introduced into a second solvent through a charged capillary where the electrically charged sample is electro-disperses to ionize the molecules.


Find Patent Forward Citations

Hill, Jr., Herbert. (2010). Ion mobility spectrometry method and apparatus (U.S. Patent No. 7777180). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7777180

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