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:
May. 20, 2014
Filed:
Mar. 21, 2011
David W. Avison, Townsend, MA (US);
Steven A. Carlson, Cambridge, MA (US);
Peter K. Barrett, Rockville, MD (US);
David W. Avison, Townsend, MA (US);
Steven A. Carlson, Cambridge, MA (US);
Peter K. Barrett, Rockville, MD (US);
Madico, Inc., Woburn, MA (US);
Optodot Corporation, Woburn, MA (US);
Abstract
A system and method for windows films having one or more layers incorporating an organic free radical compound, wherein the layers reflect in the infrared region, and one or more layers of a multilayer interference stack of a metal/metal or metal/metal oxide design. Preferably, the organic free radical compound is a salt of an aminium radical cation. One or more layers of the multilayer interference stack may incorporate an aminium radical cation compound. Also provided are security windows that utilize such window films.