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. 01, 2011
Filed:
Dec. 15, 2008
Shlomo Greenwald, Ithaca, NY (US);
Zipora Greenwald, Ithaca, NY (US);
Uri Moshe Greenwald, Ithaca, NY (US);
Shlomo Greenwald, Ithaca, NY (US);
Zipora Greenwald, Ithaca, NY (US);
Uri Moshe Greenwald, Ithaca, NY (US);
Greenwald Technologies, LLC, Ithaca, NY (US);
Abstract
A sensor for detecting a substance in a physical space, having an RF energy emitter fed by a signal source on one side of the space and an RF energy receiving element coupled to a detector at an opposite side of the channel, spaced apart by a distance (r) selected so that when the signal wavelength (λ) changes based on the value of the dielectric constant (∈) of the particular substance in the physical space between the emitter and receiver, the mode of field type within the sensor channel changes between near field and intermediate or far field mode.