Patent ID: 9332593
Filing Date: 2016-05-03
CPC Classification: H05B

Claim Text:
1. A heating element comprising: a backing layer, an adhesive layer, a first current-conducting layer for conducting electrical current, wherein, as a result of a drop in voltage, the electrical current is convertible into heat, wherein the first current-conducting layer is disposed between the backing layer and the adhesive layer, wherein the backing layer, the adhesive layer and the first current-conducting layer form a transparent structure, wherein the heating element is in the form of a planar structure defined by a plane, wherein a portion of the first current-conducting layer directly contacts the adhesive layer, and electrical contacts are located at edges of first current-conducting layer apart from the adhesive layer and covered with electrically conductive layer with a greater electrical conductivity than the electrical contacts; wherein each of the backing layer, the adhesive layer and the first current-conducting layer is transparent, the first current-conducting layer comprises carbon nanotubes, and a drop of voltage results in substantially uniform heating throughout the planar structure; wherein a temperature difference in the plane of the planar structure, apart from marginal regions in a region of contacting, is no greater than 20% of a maximum final temperature attained in the plane of the planar structure.