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.

Date of Patent:
Feb. 03, 2015

Filed:

Oct. 12, 2012
Applicant:

Sage Electrochromics, Inc., Faribault, MN (US);

Inventors:

Bryan D. Greer, Northfield, MN (US);

Erik Bjornard, Northfield, MN (US);

Assignee:

SAGE Electrochromics, Inc., Faribault, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/153 (2006.01); G02F 1/15 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1523 (2013.01);
Abstract

A control device for controlling the transmittance of an electrochromic device includes a power source, an electrical load sensing circuit, and a processor electrically coupled to the electrical load sensing circuit and a power source. The processor is configured to receive a measured electrical load value from the electrical load sensing circuit indicating an electrical property of the electrochromic device, further configured to control one or more properties of the electrochromic device by controlling the amount of current or voltage supplied from the power source to the electrochromic device, and yet further configured to vary a property of the electrochromic device while maintaining the electrochromic device at a substantially consistent transmissivity.


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