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:
Nov. 02, 2021
Filed:
Jul. 23, 2018
Schott Ag, Mainz, DE;
Birgit Doerk, Mainz, DE;
Evelin Weiss, Mainz, DE;
Thomas Zenker, Nieder-Olm, DE;
Ulf Hoffmann, Pfungstadt, DE;
Silke Knoche, Saulheim, DE;
Martin Taplan, Mainz, DE;
Friedrich Siebers, Nierstein, DE;
Thomas Kraus, Stadecken-Elsheim, DE;
Lutz Klippe, Wiesbaden, DE;
Wolfgang Schmidbauer, Mainz, DE;
SCHOTT AG, Mainz, DE;
Abstract
A glass-ceramic cooktop is provided that is made of glass-ceramic material with a flat upper side and an underside. The glass-ceramic material has transmittance values of greater than 0.1% in the visible light range in the total wavelength region greater than 420 nm, a light transmittance in the visible range of 0.8-2.5%, and a transmittance of 0-85% in the infrared at 1600 nm, and wherein the glass-ceramic material has high quartz mixed crystals as the prevalent crystal phase. The underside is flat, unstructured, and coplanar with the upper side.