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. 15, 2011
Filed:
Sep. 11, 2006
Neal A. Rakow, Woodbury, MN (US);
Dora M. Paolucci, St. Paul, MN (US);
Moses M. David, Woodbury, MN (US);
Michael S. Wendland, North St. Paul, MN (US);
John E. Trend, St. Paul, MN (US);
Richard J. Poirier, White Bear Lake, MN (US);
Neal A. Rakow, Woodbury, MN (US);
Dora M. Paolucci, St. Paul, MN (US);
Moses M. David, Woodbury, MN (US);
Michael S. Wendland, North St. Paul, MN (US);
John E. Trend, St. Paul, MN (US);
Richard J. Poirier, White Bear Lake, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An optically-responsive multilayer reflective article is formed by applying a dilute solution or suspension of metallic nanoparticles to an optically-responsive detection layer. The solution or suspension is allowed to dry to form a semicontinuous liquid- or vapor-permeable light-reflective layer that will permit a liquid or vapor analyte to pass through the light-reflective layer to cause an optically-responsive change in the detection layer in the presence of the analyte.