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EP4156484
European procedure
Extract from the Register of European Patents
EP About this file: EP4156484
| EP4156484 - DRIVE CIRCUIT HAVING ENERGY RECOVERY FUNCTION, AND SWITCH POWER SUPPLY [Right-click to bookmark this link] | Status | The patent has been granted Status updated on 24.10.2025 Database last updated on 30.03.2026 | |
| Former | Grant of patent is intended Status updated on 08.07.2025 | ||
| Former | Examination is in progress Status updated on 13.03.2025 | ||
| Former | Request for examination was made Status updated on 24.02.2023 | ||
| Former | The international publication has been made Status updated on 31.12.2021 | Most recent event Tooltip | 24.10.2025 | (Expected) grant | published on 26.11.2025 [2025/48] | Applicant(s) | For all designated states Huawei Technologies Co., Ltd. Huawei Administration Building Bantian Longgang District Shenzhen, Guangdong 518129 / CN | [2023/13] | Inventor(s) | 01 /
ANDERSSON, Mattias Shenzhen, Guangdong 518129 / CN | 02 /
TORRICO-BASCOPÉ, Grover Victor Shenzhen, Guangdong 518129 / CN | 03 /
DAI, Shengyong Shenzhen, Guangdong 518129 / CN | 04 /
ZHANG, Xiao Shenzhen, Guangdong 518129 / CN | 05 /
HONG, Qingzu Shenzhen, Guangdong 518129 / CN | [2023/13] | Representative(s) | Gill Jennings & Every LLP The Broadgate Tower 20 Primrose Street London EC2A 2ES / GB | [2023/13] | Application number, filing date | 21830258.6 | 23.06.2021 | [2023/13] | WO2021CN101795 | Priority number, date | CN202010595162 | 23.06.2020 Original published format: CN202010595162 | [2023/13] | Filing language | ZH | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO2021259319 | Date: | 30.12.2021 | Language: | ZH | [2021/52] | Type: | A1 Application with search report | No.: | EP4156484 | Date: | 29.03.2023 | Language: | EN | [2023/13] | Type: | B1 Patent specification | No.: | EP4156484 | Date: | 26.11.2025 | Language: | EN | [2025/48] | Search report(s) | International search report - published on: | CN | 30.12.2021 | (Supplementary) European search report - dispatched on: | EP | 27.10.2023 | Classification | IPC: | H02M1/088, H02M3/07, H03K17/687, H02M1/00, H02M1/08 | [2023/48] | CPC: |
H02M1/08 (EP);
H02M1/088 (CN,US);
H02M1/0048 (EP);
H02M1/0054 (EP);
H02M3/07 (CN,US);
H03K17/6877 (EP);
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| Former IPC [2023/13] | H02M1/088, H02M3/07 | Designated contracting states | AL, 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 [2023/13] | Extension states | BA | Not yet paid | ME | Not yet paid | Validation states | KH | Not yet paid | MA | Not yet paid | MD | Not yet paid | TN | Not yet paid | Title | German: | TREIBERSCHALTUNG MIT ENERGIERÜCKGEWINNUNGSFUNKTION UND SCHALTNETZTEIL | [2023/13] | English: | DRIVE CIRCUIT HAVING ENERGY RECOVERY FUNCTION, AND SWITCH POWER SUPPLY | [2023/13] | French: | CIRCUIT D'ATTAQUE AYANT UNE FONCTION DE RÉCUPÉRATION D'ÉNERGIE ET ALIMENTATION À DÉCOUPAGE | [2023/13] | Entry into regional phase | 22.12.2022 | Translation filed | 22.12.2022 | National basic fee paid | 22.12.2022 | Search fee paid | 22.12.2022 | Designation fee(s) paid | 22.12.2022 | Examination fee paid | Examination procedure | 22.12.2022 | Examination requested [2023/13] | 09.05.2024 | Amendment by applicant (claims and/or description) | 09.05.2024 | Date on which the examining division has become responsible | 12.03.2025 | Despatch of a communication from the examining division (Time limit: M04) | 06.05.2025 | Reply to a communication from the examining division | 08.07.2025 | Communication of intention to grant the patent | 16.10.2025 | Fee for grant paid | 16.10.2025 | Fee for publishing/printing paid | 16.10.2025 | Receipt of the translation of the claim(s) | Fees paid | Renewal fee | 31.03.2023 | Renewal fee patent year 03 | 31.03.2024 | Renewal fee patent year 04 | 30.06.2025 | Renewal fee patent year 05 |
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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 | [XIYA] US10009022 (RAMADASS YOGESH KUMAR et al.) [X] 1 * figures 1-5 *[I] 2-3,15 [Y] 4 [A] 5-14 | [XA] US6686729 (KAWAMURA J PATRICK et al.) [X] 1,15 * column 6, line 3 - line 56; figures 2-5 *[A] 2-14 | [XA] CN109698612 (UNIV SOUTHEAST et al.) [X] 1 * figure 1 *[A] 2-14 | [X] US2018331613 (KONDO RYOTA et al.) [X] 1 * figure 1 * | [XA] US5010261 (STEIGERWALD ROBERT L et al.) [X] 1 * figures 2,4 *[A] 2-15 | [YA] WO2017119090 (MITSUBISHI ELECTRIC CORP et al.) [Y] 4 * figures 17,18 *[A] 1-3,5-15 | [A] US2009073153 (YAMATE KAZUNORI et al.) [A] 1-15 * figures 3,14 * | [PX] CN111884491 (HUAWEI TECH CO LTD et al.) [PX] 1-15 * figures 4-8 * |