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Extract from the Register of European Patents

EP About this file: EP3934051

EP3934051 - POWER CONVERSION CIRCUIT, INVERTER, AND CONTROL METHOD [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  22.03.2024
Database last updated on 11.09.2024
FormerGrant of patent is intended
Status updated on  17.12.2023
FormerExamination is in progress
Status updated on  05.05.2023
FormerRequest for examination was made
Status updated on  03.12.2021
FormerThe international publication has been made
Status updated on  23.10.2020
Most recent event   Tooltip22.03.2024(Expected) grantpublished on 24.04.2024  [2024/17]
Applicant(s)For all designated states
Huawei Digital Power Technologies Co., Ltd.
Office 01, 39th Floor, Block A
Antuoshan Headquarters Towers
33 Antuoshan 6th Road
Futian District
Shenzhen, 518043 / CN
[2022/01]
Inventor(s)01 / WANG, Zhaohui
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
02 / SHI, Lei
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
03 / CHEN, Dong
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
 [2024/17]
Former [2022/01]01 / WANG, Zhaohui
Shenzhen, Guangdong 518129 / CN
02 / SHI, Lei
Shenzhen, Guangdong 518129 / CN
03 / CHEN, Dong
Shenzhen, Guangdong 518129 / CN
Representative(s)Goddar, Heinz J.
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[2022/01]
Application number, filing date19925326.120.12.2019
[2022/01]
WO2019CN126910
Priority number, dateCN20191031089017.04.2019         Original published format: CN201910310890
[2022/01]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020211424
Date:22.10.2020
Language:ZH
[2020/43]
Type: A1 Application with search report 
No.:EP3934051
Date:05.01.2022
Language:EN
[2022/01]
Type: B1 Patent specification 
No.:EP3934051
Date:24.04.2024
Language:EN
[2024/17]
Search report(s)International search report - published on:CN22.10.2020
(Supplementary) European search report - dispatched on:EP28.07.2022
ClassificationIPC:H02J3/38, H02M7/5387, H02M1/12, H02M1/14, H02M1/00
[2022/22]
CPC:
H02M1/123 (EP,US); H02J3/383 (CN); H02M7/53871 (EP,CN,US);
H02J3/381 (EP,US); H02M1/0048 (EP); H02M1/14 (CN,US);
H02J2300/24 (EP,US); Y02B70/10 (EP); Y02E10/56 (EP) (-)
Former IPC [2022/01]H02J3/38, H02M7/5387, H02M1/14
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 [2022/01]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:LEISTUNGSWANDLERSCHALTUNG, WECHSELRICHTER UND STEUERUNGSVERFAHREN[2022/01]
English:POWER CONVERSION CIRCUIT, INVERTER, AND CONTROL METHOD[2022/01]
French:CIRCUIT DE CONVERSION DE COURANT, ONDULEUR, ET PROCÉDÉ DE COMMANDE[2022/01]
Entry into regional phase28.09.2021Translation filed 
28.09.2021National basic fee paid 
28.09.2021Search fee paid 
28.09.2021Designation fee(s) paid 
28.09.2021Examination fee paid 
Examination procedure28.09.2021Examination requested  [2022/01]
24.11.2022Amendment by applicant (claims and/or description)
10.05.2023Despatch of a communication from the examining division (Time limit: M04)
06.09.2023Reply to a communication from the examining division
18.12.2023Communication of intention to grant the patent
13.03.2024Fee for grant paid
13.03.2024Fee for publishing/printing paid
13.03.2024Receipt of the translation of the claim(s)
Fees paidRenewal fee
28.09.2021Renewal fee patent year 03
16.12.2022Renewal fee patent year 04
26.12.2023Renewal fee patent year 05
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Documents cited:Search[XAY]EP3171499  (CONSTRUCTIONS ELECTRONIQUES + TELECOMMUNICATIONS [BE]) [X] 1-6,8,11,14,15 * abstract * * paragraphs [0002] , [0004] , [0006] , [0010] , [0018] - [0022] - [0046]; figures 1,2; claim 1 * [A] 7 [Y] 9,10,12,13;
 [Y]CN107294464  (UNIV HUAZHONG SCIENCE TECH) [Y] 9,10,12,13 * abstract ** paragraphs [0037] - [0060]; figures 1-6 *;
 [XA]  - RICARDO SOUZA FIGUEREDO ET AL, 2013 BRAZILIAN POWER ELECTRONICS CONFERENCE, (20131001), doi:10.1109/COBEP.2013.6785164, ISBN 978-1-47-990272-9, pages 517 - 524, XP055118163 [X] 1-6,8,11,14,15 * abstract * * page 520; figures 7,9 * [A] 7,9,10,12,13

DOI:   http://dx.doi.org/10.1109/COBEP.2013.6785164
Examination   - Gubia Eugenio ET AL, "EMI filter inductor size for transformerless PV systems based on the full bridge structure", Power Electronics and Motion Control Conference (EPE/PEMC), 2010 14th International, Piscataway, NJ, USA, doi:10.1109/EPEPEMC.2010.5606553, ISBN 978-1-4244-7856-9, (20100901), pages 1 - 5, URL: https://ieeexplore.ieee.org/stampPDF/getPDF.jsp?tp=&arnumber=5606553&ref=aHR0cHM6Ly9pZWVleHBsb3JlLmllZWUub3JnL2RvY3VtZW50LzU2MDY1NTM=, XP093036235

DOI:   http://dx.doi.org/10.1109/EPEPEMC.2010.5606553
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.