RK

Ralf Keller

Ericsson: 171 patents #41 of 9,909Top 1%
Dr. Ing. H.C. F. Porsche Ag: 18 patents #44 of 2,421Top 2%
AN Areva Np: 1 patents #97 of 342Top 30%
SA Siemens Aktiengesellschaft: 1 patents #10,653 of 22,248Top 50%
ST Steelcase: 1 patents #504 of 809Top 65%
Overall (All Time): #3,655 of 4,157,543Top 1%
192
Patents All Time

Issued Patents All Time

Showing 151–175 of 192 patents

Patent #TitleCo-InventorsDate
8811288 Method for enabling delivery of a message between an IMS domain and a CS domain Fredrik Lindholm 2014-08-19
8792852 Method for informing multiple mobile terminals of an emergency event Frank Hundscheidt, Thorsten Lohmar 2014-07-29
8743868 Method, devices and system of IMS services session control via USSD Andreas Witzel 2014-06-03
8670354 Sharing ongoing data session Thorsten Lohmar, Frank Hundscheidt 2014-03-11
8671201 Correlation of sessions in case of session transfer in IMS domain Alf Heidermark, Fredrik Lindholm 2014-03-11
8660091 Handling call transfer in a communication network Fredrik Lindholm 2014-02-25
8619675 Technique for emergency session handling in a communication network Andreas Witzel 2013-12-31
8542672 Call handling for IMS registered user Andreas Witzel 2013-09-24
8532091 Method and apparatus for providing IMS services to circuit-switched controlled terminals Andreas Witzel 2013-09-10
8509120 Preserving mid-call state in IMS centralized services sessions Ivo Sedlacek 2013-08-13
8483182 Single radio voice call continuity handover of calls with video media from a circuit switched access network Fredrik Lindholm 2013-07-09
8477765 Method and apparatus for correlating signalling in a communications network Bo Astrom, Carl-Henrik Hagenfeldt, Alf Heidermark, Fredrik Lindholm 2013-07-02
8441949 Methods, apparatuses and computer program products for routing a call from a circuit switched domain to a unified service domain Andreas Witzel 2013-05-14
8411641 Methods for controlling access domain switching, network nodes, user terminal and computer program product therefor Andreas Witzel, George Foti, Rogier August Caspar Joseph Noldus 2013-04-02
8401032 Multi-user multimedia messaging services Frank Hundscheidt, Thorsten Lohmar 2013-03-19
8392582 Method and apparatuses for making use of virtual IMS subscriptions coupled with the identity of a non SIP compliant terminal for non-registered subscribers Rogier August Caspar Joseph Noldus 2013-03-05
8340084 System and method for indicating circuit switched access at IMS registration Kazuhiko Nakada, George Foti 2012-12-25
8340713 Method and devices for supporting message services to a dual mode mobile station via a session initiation protocol Joerg Christian Ewert, Andreas Witzel, Martin Stumpert 2012-12-25
8326298 Technique for service domain selection Andreas Witzel, Rogier August Caspar Joseph Noldus 2012-12-04
8315425 Method for comparison of 3D computer model and as-built situation of an industrial plant Mirko Appel, Pierre Georgel, Nassir Navab 2012-11-20
8290654 Method for interrupting the force flux in the drive train of a vehicle in the event of a crash Joerg Becker, Jurgen Metzler 2012-10-16
8265015 Communication path allocating entity and method Andreas Witzel 2012-09-11
8249054 Provision of packet-based services via circuit-switched access Andreas Witzel, George Foti, Stephen Terrill 2012-08-21
8229408 System and method for selecting a subsystem for call termination Andreas Witzel 2012-07-24
8098618 Multicast in point-to-point packet-switched oriented networks Frank Hundscheidt, Thorsten Lohmar 2012-01-17