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Extract from the Register of European Patents

EP About this file: EP4050781

EP4050781 - PRE-CHARGING CIRCUIT, INVERTER AND POWER GENERATION SYSTEM [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  28.04.2023
Database last updated on 28.03.2024
FormerRequest for examination was made
Status updated on  29.07.2022
FormerThe international publication has been made
Status updated on  29.05.2021
Most recent event   Tooltip20.02.2024New entry: Reply to examination report 
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, Guangdong 518043 / CN
[2022/35]
Inventor(s)01 / ZHANG, Yanzhong
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
02 / YE, Haijun
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
03 / YAO, Xiaofeng
Huawei Administration Building
Bantian, Longgang District
Shenzhen, Guangdong 518129 / CN
 [2022/35]
Representative(s)MERH-IP Matias Erny Reichl Hoffmann Patentanwälte PartG mbB
Paul-Heyse-Strasse 29
80336 München / DE
[2022/35]
Application number, filing date20890634.716.06.2020
[2022/35]
WO2020CN96377
Priority number, dateCN20191115885822.11.2019         Original published format: CN201911158858
[2022/35]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021098201
Date:27.05.2021
Language:ZH
[2021/21]
Type: A1 Application with search report 
No.:EP4050781
Date:31.08.2022
Language:EN
[2022/35]
Search report(s)International search report - published on:CN27.05.2021
(Supplementary) European search report - dispatched on:EP18.11.2022
ClassificationIPC:H02M1/32, H02M1/36, // H02M7/12, H02M7/48
[2022/51]
CPC:
H02M1/36 (EP,CN); H02J7/35 (US); H02J3/381 (EP,US);
H02M1/32 (EP,US); H02M7/44 (US); H02J2207/20 (US);
H02J2207/50 (EP,US); H02J2300/22 (EP); H02J2300/24 (US);
H02M7/125 (EP); H02M7/48 (EP); Y02E10/56 (EP) (-)
Former IPC [2022/35]H02M1/36
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 [2022/35]
TitleGerman:VORLADESCHALTUNG, WECHSELRICHTER UND STROMERZEUGUNGSSYSTEM[2022/35]
English:PRE-CHARGING CIRCUIT, INVERTER AND POWER GENERATION SYSTEM[2022/35]
French:CIRCUIT DE PRÉCHARGE, ONDULEUR ET SYSTÈME DE GÉNÉRATION D'ÉNERGIE[2022/35]
Entry into regional phase25.05.2022Translation filed 
25.05.2022National basic fee paid 
25.05.2022Search fee paid 
25.05.2022Designation fee(s) paid 
25.05.2022Examination fee paid 
Examination procedure25.05.2022Examination requested  [2022/35]
22.02.2023Amendment by applicant (claims and/or description)
22.02.2023Date on which the examining division has become responsible
28.04.2023Despatch of a communication from the examining division (Time limit: M04)
01.09.2023Reply to a communication from the examining division
06.11.2023Despatch of a communication from the examining division (Time limit: M04)
19.02.2024Reply to a communication from the examining division
Fees paidRenewal fee
30.06.2022Renewal fee patent year 03
31.03.2023Renewal fee patent year 04
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Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:Search[A]EP0477367  (FANUC LTD [JP]) [A] 1-11* figure 1 *;
 [I]JPH04161097  (MATSUSHITA REFRIGERATION) [I] 1-11 * figure 1 *
International search[A]WO2008066000  (DAIKIN IND LTD [JP], et al) [A] 1-11* entire document *;
 [Y]CN102484372  (MITSUBISHI ELECTRIC CORP) [Y] 1-11 * description, paragraphs [0034]-[0040], and figures 2-6 *;
 [A]CN103814514  (SMA SOLAR TECHNOLOGY AG) [A] 1-11 * entire document *;
 [Y]CN104967300  (SUNGROW POWER SUPPLY CO LTD) [Y] 1-11 * description, paragraphs [0036]-[0082], and figures 1-7 *;
 [A]CN207124475U  (BEIJING ETECHWIN ELECTRICAL CO LTD) [A] 1-11 * entire document *;
 [PX]CN110994968  (HUAWEI TECH CO LTD) [PX] 1-11 * description, paragraphs [0001]-[0066], and figures 1-15 *
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.