Extract from the Register of European Patents

EP About this file: EP4018543

EP4018543 - FLEXIBLE CONTROL FOR A SIX-PHASE MACHINE [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  07.11.2025
Database last updated on 09.04.2026
FormerGrant of patent is intended
Status updated on  19.08.2025
FormerRequest for examination was made
Status updated on  27.05.2022
FormerThe international publication has been made
Status updated on  26.02.2021
Most recent event   Tooltip07.11.2025(Expected) grantpublished on 10.12.2025  [2025/50]
Applicant(s)For all designated states
Cummins, Inc.
500 Jackson Street
Columbus, Indiana 47201 / US
[2022/26]
Inventor(s)01 / ARAFAT, Akm
12450 Flanders Ct NE Unit C
Blaine, Minnesota 55449 / US
02 / PALMER, Bradford K.
3224 144th Avenue NE
Ham Lake, Minnesota 55304 / US
03 / MURTHY-BELLUR, Dakshina S.
17925 56th Avenue N
Plymouth, Minnesota 55446 / US
 [2022/26]
Representative(s)Cleveland Scott York
5 Norwich Street
London EC4A 1DR / GB
[2025/50]
Former [2022/26]CSY London
10 Fetter Lane
London EC4A 1BR / GB
Application number, filing date20853987.418.08.2020
[2022/26]
WO2020US46775
Priority number, dateUS201962890282P22.08.2019         Original published format: US 201962890282 P
[2022/26]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021034813
Date:25.02.2021
Language:EN
[2021/08]
Type: A1 Application with search report 
No.:EP4018543
Date:29.06.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 25.02.2021 takes the place of the publication of the European patent application.
[2022/26]
Type: B1 Patent specification 
No.:EP4018543
Date:10.12.2025
Language:EN
[2025/50]
Search report(s)International search report - published on:US25.02.2021
(Supplementary) European search report - dispatched on:EP02.08.2023
ClassificationIPC:H02P29/028, H02P25/22, H02P29/024
[2023/35]
CPC:
H02P29/0243 (EP); H02P21/50 (EP,US); H02P25/22 (EP,US);
H02P29/028 (EP,US)
Former IPC [2022/26]H02P25/22, H02P29/024, H02P29/032, H02P25/022
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 [2022/26]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:FLEXIBLE STEUERUNG FÜR EINE SECHSPHASENMASCHINE[2022/26]
English:FLEXIBLE CONTROL FOR A SIX-PHASE MACHINE[2022/26]
French:COMMANDE FLEXIBLE POUR UNE MACHINE À SIX PHASES[2022/26]
Entry into regional phase13.01.2022National basic fee paid 
13.01.2022Search fee paid 
13.01.2022Designation fee(s) paid 
13.01.2022Examination fee paid 
Examination procedure15.06.2021Request for preliminary examination filed
International Preliminary Examining Authority: US
13.01.2022Examination requested  [2022/26]
22.08.2022Amendment by applicant (claims and/or description)
22.02.2024Date on which the examining division has become responsible
20.08.2025Communication of intention to grant the patent
31.10.2025Fee for grant paid
31.10.2025Fee for publishing/printing paid
31.10.2025Receipt of the translation of the claim(s)
Fees paidRenewal fee
29.08.2022Renewal fee patent year 03
28.08.2023Renewal fee patent year 04
27.08.2024Renewal fee patent year 05
27.08.2025Renewal fee patent year 06
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Documents cited:Search[XY] US2014009093  (SUZUKI TAKASHI et al.) [X] 1,4-8,11-15 * abstract; figures 1,4 * * paragraph [0027] - paragraph [0104] *[Y] 2-3,9-10
 [Y]   R.O.C. LYRA ET AL: "Torque density improvement in a six-phase induction motor with third harmonic current injection", IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS., vol. 38, no. 5, 1 September 2002 (2002-09-01), US, pages 1351 - 1360, XP055333132, ISSN: 0093-9994, DOI: 10.1109/TIA.2002.802938 [Y] 2-3,9-10 * abstract; figures 8,9 * * page 1351 - column r * * page 1354, column r - page 1357, column l *

DOI:   http://dx.doi.org/10.1109/TIA.2002.802938
International search[X] US2014009093  (SUZUKI TAKASHI et al.) [X] 1-20 * ; abstract; figures 1-9; paragraphs [0004, 0023-0027, 0044, 0054-0055, 0061-0065] *
 [A] US2019068107  (MAO HENGCHUN et al.) [A] 1-20 * ; entire document *
 [A] US2013200827  (KEZOBO ISAO et al.) [A] 1-20 * ; entire document *
 [A] CN101667805  (UNIV NANJING AERONAUTICS et al.) [A] 1-20 * ; see machine translation; entire document *
 [A]   NANOTY ARCHANA, R. CHUDASAMA A.: "Control of Designed Developed Six Phase Induction Motor", INTERNATIONAL JOURNAL OF ELECTROMAGNETICS AND APPLICATIONS, vol. 2, no. 5, 2012, XP055795300, Retrieved from the Internet [retrieved on 20201012] [A] 1-20 * ; entire document. *

DOI:   http://dx.doi.org/10.5923/j.ijea.20120205.01
by applicant  LYRA ET AL.: "Torque Density Improvement in a Six-Phase Induction Motor with Third Harmonic Current Injection", vol. 38, 1 September 2002, IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
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