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Extract from the Register of European Patents

EP About this file: EP3850738

EP3850738 - VOLTAGE SOURCE CONVERTER GENERATING A PULSE TRAIN USING TWO VOLTAGE LEVELS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.09.2023
Database last updated on 02.09.2024
FormerThe patent has been granted
Status updated on  07.10.2022
FormerGrant of patent is intended
Status updated on  12.06.2022
FormerRequest for examination was made
Status updated on  18.06.2021
FormerThe international publication has been made
Status updated on  21.03.2020
Formerunknown
Status updated on  28.09.2018
Most recent event   Tooltip07.06.2024Lapse of the patent in a contracting state
New state(s): MC		published on 10.07.2024  [2024/28]
Applicant(s)For all designated states
Hitachi Energy Switzerland AG
Bruggerstrasse 72
5400 Baden / CH
[2022/03]
Former [2021/29]For all designated states
ABB Power Grids Switzerland AG
Bruggerstrasse 72
5400 Baden / CH
Inventor(s)01 / CHEN, Nan
Verksgatan19
722 10 Västerås / SE
02 / BERTOLDI, Federico
Flurstrasse 6
5415 Aargau / CH
03 / ILVES, Kalle
Birger Jarlsgatan 122
11420 Stockholm / SE
04 / POSTIGLIONE, Cicero Da Silveira
Spinnakergatan 3
72356 VÄSTERÅS / SE
 [2022/45]
Former [2021/29]01 / CHEN, Nan
Verksgatan19
722 10 Västerås / SE
02 / BERTOLDI, Federico
Via Del Corallo 10
38122 TRENTO / IT
03 / ILVES, Kalle
Sörbyvägen 26
722 33 Västerås / SE
04 / POSTIGLIONE, Cicero Da Silveira
Spinnakergatan 3
72356 VÄSTERÅS / SE
Representative(s)AWA Sweden AB
Box 45086
104 30 Stockholm / SE
[2022/45]
Former [2021/29]AWA Sweden AB
P.O. Box 45086
104 30 Stockholm / SE
Application number, filing date18769667.913.09.2018
[2021/29]
WO2018EP74721
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020052760
Date:19.03.2020
Language:EN
[2020/12]
Type: A1 Application with search report 
No.:EP3850738
Date:21.07.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 19.03.2020 takes the place of the publication of the European patent application.
[2021/29]
Type: B1 Patent specification 
No.:EP3850738
Date:09.11.2022
Language:EN
[2022/45]
Search report(s)International search report - published on:EP19.03.2020
ClassificationIPC:H02M1/14, H02M7/483
[2021/29]
CPC:
H02M1/14 (EP,US); H02M1/4233 (US); H02M7/483 (EP,US);
H02M7/4833 (EP,US); H02M7/4835 (EP,US); H02M3/33584 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2021/29]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:SPANNUNGSQUELLENUMRICHTER MIT ZWEI SPANNUNGSNIVEAUS ZUR ERZEUGUNG EINER IMPULSFOLGE[2021/29]
English:VOLTAGE SOURCE CONVERTER GENERATING A PULSE TRAIN USING TWO VOLTAGE LEVELS[2021/29]
French:CONVERTISSEUR DE SOURCE DE TENSION GÉNÉRANT UN TRAIN D'IMPULSIONS UTILISANT DEUX NIVEAUX DE TENSION[2021/29]
Entry into regional phase08.04.2021National basic fee paid 
08.04.2021Designation fee(s) paid 
08.04.2021Examination fee paid 
Examination procedure08.04.2021Amendment by applicant (claims and/or description)
08.04.2021Examination requested  [2021/29]
08.04.2021Date on which the examining division has become responsible
13.06.2022Communication of intention to grant the patent
03.10.2022Fee for grant paid
03.10.2022Fee for publishing/printing paid
03.10.2022Receipt of the translation of the claim(s)
Opposition(s)10.08.2023No opposition filed within time limit [2023/42]
Fees paidRenewal fee
08.04.2021Renewal fee patent year 03
22.09.2021Renewal fee patent year 04
27.09.2022Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
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Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAL09.11.2022
AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
IT09.11.2022
LT09.11.2022
LV09.11.2022
MC09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SI09.11.2022
SK09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
[2024/28]
Former [2024/26]AL09.11.2022
AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
IT09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SI09.11.2022
SK09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/51]AL09.11.2022
AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SI09.11.2022
SK09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/38]AL09.11.2022
AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SK09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/37]AL09.11.2022
AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/35]AT09.11.2022
CZ09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RO09.11.2022
RS09.11.2022
SE09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/34]AT09.11.2022
DK09.11.2022
EE09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RS09.11.2022
SE09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/33]AT09.11.2022
DK09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RS09.11.2022
SE09.11.2022
SM09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/29]AT09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
NL09.11.2022
PL09.11.2022
RS09.11.2022
SE09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/25]AT09.11.2022
ES09.11.2022
FI09.11.2022
HR09.11.2022
LT09.11.2022
LV09.11.2022
PL09.11.2022
RS09.11.2022
SE09.11.2022
NO09.02.2023
GR10.02.2023
IS09.03.2023
PT09.03.2023
Former [2023/23]AT09.11.2022
ES09.11.2022
FI09.11.2022
LT09.11.2022
LV09.11.2022
SE09.11.2022
NO09.02.2023
GR10.02.2023
PT09.03.2023
Former [2023/22]AT09.11.2022
ES09.11.2022
FI09.11.2022
LT09.11.2022
SE09.11.2022
NO09.02.2023
PT09.03.2023
Former [2023/20]LT09.11.2022
NO09.02.2023
Cited inInternational search[A]WO2016070378  (ABB TECHNOLOGY LTD [CH], et al) [A] 1-15* the whole document *;
 [A]EP3352361  (MITSUBISHI ELECTRIC CORP [JP]) [A] 1-15 * abstract *;
 [I]  - GOWAID I A ET AL, "Quasi Two-Level Operation of Modular Multilevel Converter for Use in a High-Power DC Transformer With DC Fault Isolation Capability", IEEE TRANSACTIONS ON POWER ELECTRONICS, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, USA, vol. 30, no. 1, doi:10.1109/TPEL.2014.2306453, ISSN 0885-8993, (20150101), pages 108 - 123, (20140826), XP011557527 [I] 1,12,15 * the whole document *

DOI:   http://dx.doi.org/10.1109/TPEL.2014.2306453
Examination   - HONGFENG ZHAO ET AL, "A novel modulation strategy for isolated modular multilevel DC/DC converter's sub-module dc voltage oscillation damping", 2016 IEEE 8TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC-ECCE ASIA), IEEE, (20160522), doi:10.1109/IPEMC.2016.7512260, pages 47 - 52, XP032924247

DOI:   http://dx.doi.org/10.1109/IPEMC.2016.7512260
    - Yuxiang Shi ET AL, "Isolated Modular Multilevel DC?DC Converter With DC Fault Current Control Capability Based on Current-Fed Dual Active Bridge for MVDC Application", IEEE Transactions on Power Electronics, USA, (20180301), vol. 33, no. 3, doi:10.1109/TPEL.2017.2695575, ISSN 0885-8993, pages 2145 - 2161, XP055680440

DOI:   http://dx.doi.org/10.1109/TPEL.2017.2695575
by applicant   - GOWAID et al., "Quasi Two-Level Operation of Modular Multilevel Converter for Use in a High-Power DC Transformer With DC Fault Isolation Capability", IEEE Transactions On Power Electronics, (20150100), vol. 30, no. 1, doi:doi:10.1109/TPEL.2014.2306453, XP011557527

DOI:   http://dx.doi.org/10.1109/TPEL.2014.2306453
    - MERTENS; KUCKA, "Quasi Two-Level PWM Operation of an MMC Phase Leg With Reduced Module Capacitance", IEEE Transactions On Power Electronics, (20161000), vol. 31, no. 10, doi:doi:10.1109/TPEL.2016.2537372, XP011611012

DOI:   http://dx.doi.org/10.1109/TPEL.2016.2537372
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.