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:
Nov. 26, 2002
Filed:
Jan. 20, 2000
Applicant:
Inventors:
Neil J. Goldfine, Newton, MA (US);
Darrell E. Schlicker, Watertown, MA (US);
Markus Zahn, Lexington, MA (US);
Wayne D. Ryan, Pembroke, MA (US);
Yanko Sheiretov, Cambridge, MA (US);
Andrew Washabaugh, Menlo Park, CA (US);
Assignee:
Jentek Sensors, Inc., Waltham, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
G01R 2/726 ;
U.S. Cl.
CPC ...
G01R 2/726 ;
Abstract
A dielectrometer with a sensor face that carries an excitation electrode driven with a varying voltage. At least two sensing electrodes and a guard electrode are also carried by the sensor face. The sensing electrodes are adapted for single or multiple penetration depth measurements into a test material. The guard electrode surrounds the sensing electrodes and is at about the same voltage as the sensing electrodes.