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 7171844 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 06, 2007

Filed:

Feb. 13, 2006
Applicants:

Brian T. Cunningham, Lexington, MA (US);

John R. Williams, Lexington, MA (US);

Inventors:

Brian T. Cunningham, Lexington, MA (US);

John R. Williams, Lexington, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 5/04 (2006.01); G01N 25/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus for measuring the mass of a substance includes a sensor having a membrane layer, the membrane for receiving the substance thereon, an oscillator device for driving the membrane at a reference resonant frequency, a frequency detection device for determining a change in the reference resonant frequency caused by the presence of the substance on the membrane, and a mass determining device for determining the mass of the substance, the change in the reference resonant frequency being indicative of the mass of the substance.


Find Patent Forward Citations

Cunningham, Brian. (2007). Apparatus and method for measuring the mass of a substance (U.S. Patent No. 7171844). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7171844

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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