Abstract: The present invention relates to a method for registering usage data of a device in a building, comprising the steps of: establishing a local wireless connection with a communication module of the device, the wireless connection being a Wireless Personal Area Network, WPAN, connection compliant; defining a usage event of the device, including at least location data, time data, state data, and user data; establishing a remote wireless connection with a remote central data processing unit for logging the usage event in a usage database, the remote wireless connection comprising a data connection over a mobile telecommunications network and/or a data connection over a WLAN connection; and wherein forwarding the device usage event to the remote central data processing unit is initiated after the device usage event is defined.

Abstract: The present invention relates to a method and a system for the safe transfer of data between at least two computer devices.

Abstract: The present invention relates to a computer implemented method of authenticating a user to grant the user access to restricted digital content.

Abstract: An exhaust unit for a hanging toilet bowl is described, and includes a house with a back wall and a front wall, two exhaust coupling tubes extending in the house from the front wall to the back wall and having a first end projecting outside the house back wall. The first end of a second exhaust coupling tube can have a diameter that is larger than the diameter of the first end of a first exhaust coupling tube. At its second end, the first exhaust coupling tube can be provided with a sealing ring arranged in a groove-shaped recess of the inner wall. At its second end, the second exhaust coupling tube can provided with a sealing ring arranged in a groove-shaped recess of the inner wall.