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. 16, 2010
Filed:
Jan. 14, 2005
Douglas H. Werner, State College, PA (US);
Theresa S. Mayer, Port Matilda, PA (US);
Jeremy A. Bossard, State College, PA (US);
Robert P. Drupp, Columbia, MD (US);
Xiaotao Liang, State College, PA (US);
Ling LI, State College, PA (US);
Douglas H. Werner, State College, PA (US);
Theresa S. Mayer, Port Matilda, PA (US);
Jeremy A. Bossard, State College, PA (US);
Robert P. Drupp, Columbia, MD (US);
Xiaotao Liang, State College, PA (US);
Ling Li, State College, PA (US);
The Penn State Research Foundation, University Park, PA (US);
Abstract
An improved frequency selective surface (FSS) comprises a periodically replicated unit cell, the unit cell including a material having a first electrical conductivity in the presence of an external condition, and a second electrical conductivity in the absence of an external condition, or in the presence of a modified external condition. For example, the material may be a chemoresistive material, having an electrical conductivity that changes in the presence of a chemical or biological analyte, i.e. having a first value of electrical conductivity in the presence of the analyte, and a second value of electrical conductivity in the absence of the analyte.