Inventor

Ralf Keller

Inventor

WÃ¼rselen, DE

Overview

1986–2021

Patent span

Electricity

Primary field (CPC H)

Patents· 146 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Wprimary

H04WWireless communication networks41%

H04LTransmission of digital information, e.g. telegraphic communication30%

H04MTelephonic communication7%

Y02TClimate change mitigation technologies related to transportation2%

B60LPropulsion of electrically-propelled vehicles2%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy2%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution2%

B60KArrangement or mounting of propulsion units or of transmissions in vehicles1%

B60YIndexing scheme relating to aspects cross-cutting vehicle technology1%

B62DMotor vehicles1%

PatentTitleYear

11,071,054Access control in communications network comprising slices2021 11,050,799Methods and devices for registering a user equipment, UE, with low access priority in an internet protocol based multimedia subsystem, IMS2021 11,032,688IMS emergency calls for roaming UEs2021 10,863,560First network node, receiving network node and methods performed therein2020 10,841,863Access information handling in a mobile network with cellular network accesses and wireless local area network accesses2020 10,827,392Handover delay optimization2020 10,805,355Network initiated CS services during IMS call2020 10,800,260System for detecting mechanical loading of a traction battery for a vehicle2020 10,798,753Methods and devices for supporting network initiated PDU session establishment between an user equipment, UE, and a data network name, DNN, in a telecommunication network2020 10,785,694Method, network functions and a computer program product for supporting the handing over of a user equipment, UE, from a first type of radio access technology, RAT, to a second type of RAT2020 10,757,645Access control in communications network comprising slices2020 10,716,033Session transfer in a communication network2020 10,652,942Method and device for network initiated packet data unit, PDU, session establishment in a telecommunication network2020 10,630,847Methods and nodes for enabling management of traffic steering policy2020 10,622,606Energy store for a vehicle and method for providing an energy store for a vehicle2020 10,595,250Quality of service initiated handover2020 10,575,165Routing based on access point name (APN) information2020 10,506,429Systems and methods for using GBA for services used by multiple functions on the same device2019 10,506,499Indication of packet based voice support in a mobile network with different radio access technologies2019 10,356,668Handling a terminating circuit switched signaling service to a terminal in a mobile network2019 10,298,032Protective device for a plug-in electric vehicle, charging plate, high-voltage line and plug-in electric vehicle2019 10,257,801Enabling dual registration of user equipment with IP multimedia subsystems2019 10,251,097Technique for applying policy and charging rules to bearers2019 10,231,278Technique for terminating call set up in a CSFB situation2019 10,172,057Handling of radio access network re-selection2019 10,159,056Method and apparatus for requesting an initial attachment of a UE to PS mobile communication network2018 10,098,061WLAN network selection2018 10,079,860Network initiated CS services during IMS call2018 10,009,830Access information handling in a mobile network with cellular network accesses and wireless local area network accesses2018 9,986,467Node and method for a combined single radio voice call continuity and a packet switched handover2018 9,973,338Configuration of liveness check using internet key exchange messages2018 9,925,856'Arrangement in a motor vehicle'2018 9,929,389'Battery device and method of production thereof'2018 9,924,414'Session transfer from a circuit switched network to a packet switched network'2018 9,911,952'Battery module for a motor vehicle'2018 9,900,806'Handling call transfer in a communication network'2018 9,888,409'Session transfer in a communication network'2018 9,813,949'Technique for terminating call set up in a CSFB situation'2017 9,804,060'Crash barrier'2017 9,802,649'Body part of a vehicle'2017 9,800,404'Configuration of liveness check using internet key exchange messages'2017 9,788,184'Method for informing multiple mobile terminals of an emergency event'2017 9,781,762'Technique for connection attempt handling in a circuit switched fallback situation'2017 9,749,906'Controlling a movement of a mobile terminal between radio access networks'2017 9,717,023'Methods and devices for improving session continuity'2017 9,717,043'Regulation by MSC server when using SGs/Gs'2017 9,705,117'Battery housing part'2017 9,674,750'Handling of access capability information in a mobile network'2017 9,654,954'Providing an IMS voice session via a packet switch network and an emergency voice session via a circuit switch network'2017 9,614,876'Provision of IMS services via circuit-switched access'2017 9,596,275'Method for registering multi-contact devices'2017 9,596,640'Method of routing a session from a calling party in a serving communication network of the calling party to a called party'2017 9,560,517'Method and apparatus for providing a service to a roaming UE via a packet data network gateway'2017 9,544,338'Call handling for IMS registered user'2017 9,538,361'Methods and apparatuses for registering a terminal in the IMS over a circuit-switched access domain'2017 9,538,574'Technique for terminating call set up in a CSFB situation'2017 9,521,590'Multi-bearer connection control'2016 9,509,547'Selection of service domain in IMS centralised services'2016 9,491,668'Methods of and nodes for informing a control node in a serving communication network of address information about a session anchor node in the serving communication network'2016 9,467,907'Handover of user-equipment (UE) undetected emergency calls'2016 9,456,390'Method and apparatuses for maintaining service continuity to a centralization and continuity application server'2016 9,456,400'Best effort call routing preference setting'2016 9,432,897'Handling of access capability information in a mobile network'2016 9,413,898'Technique for interconnecting circuit-switched and packet-switched domains'2016 9,413,561'Routing terminating calls'2016 9,408,113'Methods of and nodes for selecting a target core network for handing over a voice session of a terminal'2016 9,374,761'Routing terminating call to user equipment via control nodes'2016 9,374,763'Gating control in a telecommunication system'2016 9,374,702'Technique for operating a network node during a mobile terminating roaming forwarding procedure'2016 9,338,641'Enhanced handling of access capability information in a mobile network'2016 9,332,467'SRVCC handover of calls between access networks with efficient media gateway selection'2016 9,294,964'Handover delay optimization'2016 9,294,618'Call-back to a UE that has made an emergency call via a visited IMS network'2016 9,294,993'Handling of access capability information in a mobile network'2016 9,282,143'Method for handling data stored by a communication system'2016 9,277,461'Methods of and nodes for selecting a target core network for handing over a voice session of a terminal'2016 9,264,946'Homogeneous circuit switched voice support indication in a mobile network'2016 9,254,873'Impact element and supporting frame for a motor vehicle'2016 9,184,978'Operating and supporting dual mode user equipment'2015 9,173,145'Handling call transfer in a communication network'2015 9,161,268'Technique for connection attempt handling in a circuit switched fallback situation'2015 9,152,965'Method and devices for inter-terminal payments'2015 9,144,050'Methods and apparatus for use in a communications network'2015 9,106,664'Method and apparatuses for maintaining service continuity to a centralization and continuity application server'2015 9,100,408'Method for registering multi-contact devices'2015 9,078,172'Session transfer in a communication network'2015 9,066,213'Node for short message context'2015 9,055,546'Handling a registration timer to provide service continuity in IMS'2015 8,989,151'Short messaging service over 3GPP long term evolution'2015 8,989,178'System and method for indicating circuit switched access at IMS registration'2015 8,989,028'Roaming control for IMS APN'2015 8,990,414'Method and apparatuses for making use of virtual IMS subscriptions coupled with the identity of a non SIP compliant terminal for non-registered subscribers'2015 8,964,961'Method of routing a session from a calling party in a serving communication network of the calling party to a called party'2015 8,955,271'Sliding door assembly'2015 8,948,127'Method, apparatus and computer program for supporting a session identifier in case of a transfer between different radio access networks'2015 8,923,247'Handover from circuit switched to packet switched'2014 8,923,854'Method of and equipment for subscriber mobility registration update in a home location register of a mobile communications network'2014 8,908,643'Handover of priority calls from a circuit switched access network with single radio voice call continuity'2014 8,885,603'Handover of calls between access networks'2014 8,855,105'Call handling for IMS registered user'2014 8,848,666'Handover of emergency calls from a circuit switched to a packet switched access network'2014 8,824,417'Methods and apparatuses for single radio voice call continuity (SRVCC) from CS to LTE'2014 8,811,288'Method for enabling delivery of a message between an IMS domain and a CS domain'2014 8,811,229'Handling ICS enhanced and non enhanced MSC in a pool'2014 8,792,852'Method for informing multiple mobile terminals of an emergency event'2014 8,743,868'Method, devices and system of IMS services session control via USSD'2014 8,671,201'Correlation of sessions in case of session transfer in IMS domain'2014 8,670,354'Sharing ongoing data session'2014 8,660,091'Handling call transfer in a communication network'2014 8,619,675'Technique for emergency session handling in a communication network'2013 8,542,672'Call handling for IMS registered user'2013 8,532,091'Method and apparatus for providing IMS services to circuit-switched controlled terminals'2013 8,509,120'Preserving mid-call state in IMS centralized services sessions'2013 8,483,182'Single radio voice call continuity handover of calls with video media from a circuit switched access network'2013 8,477,765'Method and apparatus for correlating signalling in a communications network'2013 8,441,949'Methods, apparatuses and computer program products for routing a call from a circuit switched domain to a unified service domain'2013 8,411,641'Methods for controlling access domain switching, network nodes, user terminal and computer program product therefor'2013 8,401,032'Multi-user multimedia messaging services'2013 8,392,582'Method and apparatuses for making use of virtual IMS subscriptions coupled with the identity of a non SIP compliant terminal for non-registered subscribers'2013 8,340,713'Method and devices for supporting message services to a dual mode mobile station via a session initiation protocol'2012 8,340,084'System and method for indicating circuit switched access at IMS registration'2012 8,326,298'Technique for service domain selection'2012 8,315,425'Method for comparison of 3D computer model and as-built situation of an industrial plant'2012 8,290,654'Method for interrupting the force flux in the drive train of a vehicle in the event of a crash'2012 8,265,015'Communication path allocating entity and method'2012 8,249,054'Provision of packet-based services via circuit-switched access'2012 8,229,408'System and method for selecting a subsystem for call termination'2012 8,098,618'Multicast in point-to-point packet-switched oriented networks'2012 8,095,116'Method for delivering multimedia files'2012 7,996,553'Multi-user streaming'2011 7,958,254'Method and device for performing floor control'2011 7,944,873'Method and system for access and accounting of point-to-multipoint services'2011 7,792,105'Broadcast in point-to-point oriented packet-switched networks'2010 7,680,109'Mobile multipoint service'2010 7,606,186'Multicast in point-to-point packet-switched oriented networks'2009 7,558,262'Group hopping and channel zapping during transmission of multicast applications'2009 7,515,872'Distributed Caching and Redistribution System and Method in a Wireless Data Network'2009 7,499,466'Multicast group management in telecommunication networks'2009 7,436,788'Dynamic frequency spectrum re-allocation'2008 7,369,541'Multicast in a point-to point oriented packet-switched telecommunication network'2008 7,366,517'Cellular radio network reusing frequencies'2008 7,180,860'Method and devices to provide a defined quality of service in a packet switched communication network'2007 7,146,132'Cellular radio network reusing frequencies'2006 6,496,689'Indication of charging information using the USSD mechanism'2002 5,943,344'Method and apparatus for formatting synchronous and asynchronous data'1999 4,603,672'Fuel vaporizer for internal combustion engine'1986

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1999–2021Patents assigned to ERICSSON TELEFON AB L M (121)· patent assignee history

1999–2021Based in Wurselen, DE· patent location history

2006–2019Based in WÃ¼rselen, DE· patent location history

2009–2015Based in Wuerselen, DE· patent location history

2012–2017Patents assigned to KELLER RALF (67)· patent assignee history

2012–2017Patents assigned to WITZEL ANDREAS (20)· patent assignee history

2013–2017Patents assigned to LINDHOLM FREDRIK (25)· patent assignee history

2016–2017Patents assigned to ERICSSON TELEFON AB L M (publ) (20)· patent assignee history

2016–2019Based in Niefern-Oeschelbronn, DE· patent location history

2018–2020Based in Niefern, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
ERICSSON TELEFON AB L M	121	1999–2021
KELLER RALFself	67	2012–2017
LINDHOLM FREDRIK	25	2013–2017
ERICSSON TELEFON AB L M (publ)	20	2016–2017
WITZEL ANDREAS	20	2012–2017

Locations

Location	Patents	Span
WÃ¼rselen, DE	85	2006–2019
Wurselen, DE	42	1999–2021
Niefern-Oeschelbronn, DE	7	2016–2019
Niefern, DE	3	2018–2020
Wuerselen, DE	3	2009–2015