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:
Apr. 26, 2022
Filed:
Apr. 26, 2018
Plansee SE, Reutte, AT;
Osram Gmbh, Munich, DE;
Hannes Traxler, Reutte, AT;
Ingmar Wesemann, Reutte, AT;
Wolfram Knabl, Reutte, AT;
Alexander Tautermann, Reutte, AT;
Maria Nilius, Munich, DE;
Plansee SE, Reutte, AT;
Osram GmbH, Munich, DE;
Abstract
A cathode material for use in a high-pressure discharge lamp contains a matrix based on tungsten having a tungsten content of greater than or equal to 95% by weight, tungsten carbide, and oxides and/or predominantly oxidic phases of one or more emitter elements from the group of rare earth metals, Hf, and Zr. The cathode material additionally contains predominantly carbidic phases of the one or more emitter elements from the group of rare earth metals, Hf, and Zr. A high-pressure discharge lamp would contain such a cathode composed of the above cathode material.