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. 25, 2007
Filed:
Aug. 07, 2002
Raanan A. Miller, Brookline, MA (US);
Erkinjon G. Nazarov, Lexington, MA (US);
Evgeny Krylov, Las Cruces, NM (US);
Gary A. Eiceman, Las Cruces, NM (US);
Lawrence A. Kaufman, Boston, MA (US);
Raanan A. Miller, Brookline, MA (US);
Erkinjon G. Nazarov, Lexington, MA (US);
Evgeny Krylov, Las Cruces, NM (US);
Gary A. Eiceman, Las Cruces, NM (US);
Lawrence A. Kaufman, Boston, MA (US);
Sionex Corporation, Waltham, MA (US);
Abstract
In a system for chemical analysis, an RF-driven plasma ionization device including a pair of spaced-apart and plasma-isolated electrodes, the electrodes are connected to a power source wherein the electrodes act as plates of a capacitor of a resonant circuit, the gas electrically discharges and creates a plasma of both positive and negative ions, and the voltage is applied as a continuous alternating waveform or as a series of pulses, such as a packet waveform.