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:
Jan. 26, 2016
Filed:
Jul. 03, 2013
Fabien J. Josse, Brookfield, WI (US);
Florian Bender, Milwaukee, WI (US);
Antonio J. Ricco, Los Gatos, CA (US);
Rachel Mohler, Emeryville, CA (US);
Urmas Kelmser, San Ramon, CA (US);
Karen Synowiec, Martinez, CA (US);
Robert Michael Lorenz, Walnut Creek, CA (US);
Fabien J. Josse, Brookfield, WI (US);
Florian Bender, Milwaukee, WI (US);
Antonio J. Ricco, Los Gatos, CA (US);
Rachel Mohler, Emeryville, CA (US);
Urmas Kelmser, San Ramon, CA (US);
Karen Synowiec, Martinez, CA (US);
Robert Michael Lorenz, Walnut Creek, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
A process for a pre-concentration unit including: a sorbent material coated passage-way having an entrance for receiving a hydrocarbon-containing groundwater sample and for pre-concentrating the hydrocarbons in a hydrocarbon-containing groundwater sample by successive sorption/desorption cycles, and having an exit for discharging the pre-concentrated hydrocarbons; a heating unit for heating the sorbent material coated passage-way; and; an array of shear horizontal-surface acoustic wave sensors with coatings adapted for detecting and quantifying the pre-concentrated hydrocarbons, disposed at the exit of the sorbent material coated passage-way; and a housing for enclosing the pre-concentration unit and the array of shear horizontal-surface acoustic wave sensors, adapted for continuous use at a body of hydrocarbon-containing groundwater, and coupled to mathematical methods for generating concentrations of specific analytes from both transient and steady-state signals.