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:
Mar. 20, 2001
Filed:
May. 07, 1998
Tapesh Yadav, Tucson, AZ (US);
Clayton Kostlecky, Tucson, AZ (US);
William Leigh, Tucson, AZ (US);
Anthony Vigilotti, Tucson, AZ (US);
Chuanjing Xu, Tucson, AZ (US);
Yinbao Yang, Tucson, AZ (US);
Abstract
Methods of monitoring environmental variables in general and chemical composition in particular, and sensors for such monitoring. These low-cost sensors comprised multiple layers in a laminated stack. Very high numbers of sensing layers (e.g., 500) may be incorporated into a single laminated sensor device. The sensors may signal changes in environmental state such as chemical composition due to changes in sensor properties such as resistivity, capacitance, inductance, permittivity, permeability, refractive index, chromaticity, transparency to light, reflection characteristics, resonance frequency, and/or magnetic characteristics.