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:
Jul. 23, 2019
Filed:
Oct. 21, 2014
Kone Corporation, Helsinki, FI;
Sampo Ahokas, Hyvinkää, FI;
Niko Elomaa, Hyvinkää, FI;
Antti Hovi, Hyvinkää, FI;
Ferenc Staengler, Hyvinkää, FI;
Jani Kirmanen, Helsinki, FI;
Mikko Niemelä, Helsinki, FI;
KONE CORPORATION, Helsinki, FI;
Abstract
The invention allows verification of authenticity of a maintenance means connectable to a controller of a passenger transportation/access device of a building. A digitally signed license key including a public asymmetric cryptography key of the maintenance means and optionally a one-way hash of a unique identifier of the maintenance means is used for this verification. Furthermore, an asymmetric cryptography key pair of the maintenance means and a symmetric cryptography key created by the controller are utilized in this verification.