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Extract from the Register of European Patents

EP About this file: EP3254369

EP3254369 - RELIABLE CONTROL OF HIGH ROTOR POLE SWITCHED RELUCTANCE MACHINE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  12.07.2024
Database last updated on 26.07.2024
FormerThe patent has been granted
Status updated on  04.08.2023
FormerGrant of patent is intended
Status updated on  22.12.2022
FormerExamination is in progress
Status updated on  05.02.2021
FormerRequest for examination was made
Status updated on  10.11.2017
FormerThe international publication has been made
Status updated on  04.08.2017
Most recent event   Tooltip12.07.2024Lapse of the patent in a contracting state
New state(s): DK		published on 14.08.2024 [2024/33]
12.07.2024No opposition filed within time limitpublished on 14.08.2024 [2024/33]
Applicant(s)For all designated states
Turntide Technologies Inc.
1295 Forgewood Avenue
Sunnyvale, CA 94089 / US
[2020/40]
Former [2018/10]For all designated states
Software Motor Company
1295 Forgewood Avenue
Sunnyvale, CA 94089 / US
Former [2017/50]For all designated states
Software Motor Corporation
1295 Forgewood Avenue
Sunnyvale, CA 94089 / US
Inventor(s)01 / KRISHNAMURTHY, Mahesh
1295 Forgewood Avenue
Sunnyvale, CA 94089 / US
02 / CREARY, Trevor
1295 Forgewood Avenue
Sunnyvale, CA 94089 / US
 [2017/50]
Representative(s)Barker Brettell LLP
100 Hagley Road
Edgbaston
Birmingham B16 8QQ / GB
[2023/36]
Former [2017/50]Atkinson, Jennifer
Barker Brettell LLP
100 Hagley Road
Edgbaston
Birmingham B16 8QQ / GB
Application number, filing date16747301.604.02.2016
[2017/50]
WO2016US16650
Priority number, dateUS201562111781P04.02.2015         Original published format: US 201562111781 P
[2017/50]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2016126998
Date:11.08.2016
Language:EN
[2016/32]
Type: A1 Application with search report 
No.:EP3254369
Date:13.12.2017
Language:EN
The application published by WIPO in one of the EPO official languages on 11.08.2016 takes the place of the publication of the European patent application.
[2017/50]
Type: B1 Patent specification 
No.:EP3254369
Date:06.09.2023
Language:EN
[2023/36]
Search report(s)International search report - published on:US11.08.2016
(Supplementary) European search report - dispatched on:EP31.08.2018
ClassificationIPC:H02P6/185, H02P25/089
[2018/40]
CPC:
H02P25/089 (EP,CN,US); H02P6/185 (EP,CN,US); H02P6/186 (CN,US);
H02P2203/01 (CN)
Former IPC [2017/50]H02P6/185
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 [2017/50]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TitleGerman:ZUVERLÄSSIGE STEUERUNG EINER GESCHALTETEN RELUKTANZMASCHINE MIT HOHEM ROTORPOL[2017/50]
English:RELIABLE CONTROL OF HIGH ROTOR POLE SWITCHED RELUCTANCE MACHINE[2017/50]
French:COMMANDE FIABLE D'UNE MACHINE À RÉLUCTANCE COMMUTÉE À GRAND NOMBRE DE PÔLES DE ROTOR[2017/50]
Entry into regional phase03.08.2017National basic fee paid 
03.08.2017Search fee paid 
03.08.2017Designation fee(s) paid 
03.08.2017Examination fee paid 
Examination procedure03.08.2017Examination requested  [2017/50]
03.08.2017Date on which the examining division has become responsible
28.03.2019Amendment by applicant (claims and/or description)
04.02.2021Despatch of a communication from the examining division (Time limit: M06)
13.08.2021Reply to a communication from the examining division
17.06.2022Despatch of a communication from the examining division (Time limit: M04)
27.10.2022Reply to a communication from the examining division
23.12.2022Communication of intention to grant the patent
25.05.2023Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time
31.07.2023Fee for grant paid
31.07.2023Fee for publishing/printing paid
31.07.2023Receipt of the translation of the claim(s)
Opposition(s)07.06.2024No opposition filed within time limit [2024/33]
Request for further processing for:The application is deemed to be withdrawn due to failure to fulfill actions required for granting the patent
31.07.2023Request for further processing filed
31.07.2023Full payment received (date of receipt of payment)
Request granted
09.08.2023Decision despatched
Fees paidRenewal fee
20.02.2018Renewal fee patent year 03
25.02.2019Renewal fee patent year 04
26.02.2020Renewal fee patent year 05
22.02.2021Renewal fee patent year 06
24.02.2022Renewal fee patent year 07
23.02.2023Renewal fee patent year 08
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  TooltipAT06.09.2023
CZ06.09.2023
DK06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
PL06.09.2023
RO06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
NO06.12.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
[2024/33]
Former [2024/26]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
IT06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
PL06.09.2023
RO06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
NO06.12.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/25]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
PL06.09.2023
RO06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
NO06.12.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/23]AT06.09.2023
CZ06.09.2023
EE06.09.2023
ES06.09.2023
FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
RO06.09.2023
RS06.09.2023
SE06.09.2023
SK06.09.2023
SM06.09.2023
NO06.12.2023
GR07.12.2023
IS06.01.2024
PT08.01.2024
Former [2024/20]FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
RS06.09.2023
SE06.09.2023
SM06.09.2023
NO06.12.2023
GR07.12.2023
IS06.01.2024
Former [2024/14]FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
NL06.09.2023
RS06.09.2023
SE06.09.2023
NO06.12.2023
GR07.12.2023
Former [2024/10]FI06.09.2023
HR06.09.2023
LT06.09.2023
LV06.09.2023
RS06.09.2023
SE06.09.2023
NO06.12.2023
GR07.12.2023
Former [2024/09]FI06.09.2023
LT06.09.2023
SE06.09.2023
NO06.12.2023
GR07.12.2023
Former [2024/08]LT06.09.2023
NO06.12.2023
GR07.12.2023
Documents cited:Search[Y]US2004124806  (EHSANI MEHRDAD [US], et al) [Y] 1-15 * paragraph [0001] - paragraph [0002]; figures 1,3; claim 1 * * paragraph [0068]; figure 7 * * paragraph [0039] - paragraph [0055] *;
 [A]US2004189240  (ISLAM MOHAMMAD S [US], et al) [A] 1-15* paragraph [0033]; figure 2 *;
 [Y]US8125170  (FAHIMI BABAK [US], et al) [Y] 1-15 * column 1, line 15 - line 45; figures 1-9 * * column 3, line 16 - column 6, line 11 *;
 [A]US2012146626  (BIELER THIERRY [CH], et al) [A] 1-15 * paragraph [0104] - paragraph [0107] *
International search[A]US4520302  (HILL ROLAND J [GB], et al) [A] 1-20 * entire document *;
 [A]US4772839  (MACMINN STEPHEN R [US], et al) [A] 1-20* entire document *;
 [Y]US5254914  (DUNFIELD JOHN C [US], et al) [Y] 2, 4, 7, 9, 11-20 * entire document *;
 [XY]US8125170  (FAHIMI BABAK [US], et al) [X] 1, 3, 5, 6, 8, 10 * entire document * [Y] 2, 4, 7, 9, 11-20
Examination   - CHI H P ET AL, "Improved mutual voltage technique of indirect rotor position sensing in switched reluctance motor", POWER ELECTRONICS SPECIALISTS CONFERENCE; [ANNUAL POWER ELECTRONICS SPECIALISTS CONFERENCE],, (20020623), vol. 1, ISBN 978-0-7803-7262-7, pages 271 - 275, XP010596099
    - TIAN-HUA LIU ET AL, "Implementation of a sensorless switched reluctance drive with self-inductance estimating technique", IECON-2002. PROCEEDINGS OF THE 28TH. ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY. SEVILLA, SPAIN, NOV. 5 - 8, 2002; [ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY], IEEE, NEW YORK,NY, US, (20021105), vol. 1, doi:10.1109/IECON.2002.1187560, ISBN 978-0-7803-7474-4, pages 508 - 513, XP010633209

DOI:   http://dx.doi.org/10.1109/IECON.2002.1187560
by applicantUS2004124806
 US8125170
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.