Heating device and method for manufacturing the heating device
US8835819B2 · kind B2 · utility
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22References
13Claims
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Key dates
| Filing date | Jul 23, 2009 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Apr 9, 2030 |
Classification
- Technology area (CPC —)General
Abstract
A heating device is provided, comprising a shaped body, which has at least two regions comprising different compositions of a ceramic material with a positive temperature coefficient of electrical resistance. A method for manufacturing a heating device is furthermore specified.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.