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:
Jun. 27, 2006
Filed:
Nov. 09, 2000
Frank Kappe, Rheda-Wiedenbrück, DE;
Benedikt Ahlers, Berlin, DE;
Arnim Franz-burgholz, Berlin, DE;
Hans-jürgen Limburg, Tiefenort, DE;
Detlef Starick, Bad Liebenstein, DE;
Monika Voh, Breitungen, DE;
Frank Kappe, Rheda-Wiedenbrück, DE;
Benedikt Ahlers, Berlin, DE;
Arnim Franz-Burgholz, Berlin, DE;
Hans-Jürgen Limburg, Tiefenort, DE;
Detlef Starick, Bad Liebenstein, DE;
Monika Voh, Breitungen, DE;
Bundesdruckeri GmbH, Berlin, DE;
Leuchtstoffwerk Breitungen GmbH, Breitungen, DE;
Abstract
Zinc sulfide electroluminophores are prepared from solutions of zinc salts with hydrogen sulfide. The zinc sulfide compounds are mixed with activator and coactivator compounds to produce luminophores, and the mixtures are fired in the presence of fixing agents. These fired materials are then treated in an acid bath, washed, neutralized, and optionally filtered and dried.