blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP3828903

EP3828903 - A METHOD FOR INCREASING THE COERCIVITY OF A SINTERED TYPE NDFEB PERMANENT MAGNET [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.05.2024
Database last updated on 03.01.2025
FormerThe patent has been granted
Status updated on  09.06.2023
FormerGrant of patent is intended
Status updated on  16.04.2023
FormerRequest for examination was made
Status updated on  30.04.2021
Most recent event   Tooltip15.11.2024Lapse of the patent in a contracting state
New state(s): BG
published on 18.12.2024  [2024/51]
Applicant(s)For all designated states
Yantai Dongxing Magnetic Materials Inc.
888 Yongda St.
Fushan Dist.
Yantai City 265500 / CN
[N/P]
Former [2023/10]For all designated states
Yantai Dongxing Magnetic Materials Inc.
888 Yongda St. Fushan Dist.
265500 Yantai City / CN
Former [2021/22]For all designated states
Yantai Shougang Magnetic Materials Inc.
888 Yongda Street
Fushan District
Yantai City
265500 / CN
Inventor(s)01 / Wang, Chuanshen
No. 888 Yongda St.
Fushan Dist.
Yantai-City, 265500 / CN
02 / Yang, Kunkun
No. 888 Yongda St.
Fushan Dist.
Yantai-City, 265500 / CN
03 / Peng, Zhongjie
No. 888 Yongda St.
Fushan Dist.
Yantai-City, 265500 / CN
04 / Jia, Daoning
No. 888 Yongda St.
Fushan Dist.
Yantai-City, 265500 / CN
05 / Ding, Kaihong
No. 888 Yongda St.
Fushan Dist.
Yantai-City, 265500 / CN
 [2021/22]
Representative(s)Gulde & Partner
Patent- und Rechtsanwaltskanzlei mbB
Berliner Freiheit 2
10785 Berlin / DE
[N/P]
Former [2021/22]Gulde & Partner
Patent- und Rechtsanwaltskanzlei mbB
Wallstraße 58/59
10179 Berlin / DE
Application number, filing date20206111.506.11.2020
[2021/22]
Priority number, dateCN20191119438728.11.2019         Original published format: CN201911194387
[2021/22]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3828903
Date:02.06.2021
Language:EN
[2021/22]
Type: B1 Patent specification 
No.:EP3828903
Date:12.07.2023
Language:EN
[2023/28]
Search report(s)(Supplementary) European search report - dispatched on:EP29.04.2021
ClassificationIPC:H01F41/02
[2021/22]
CPC:
H01F41/0293 (EP,CN,US); H01F1/0577 (US); H01F41/0253 (CN)
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 [2021/22]
TitleGerman:VERFAHREN ZUR ERHÖHUNG DER KOERZIVITÄT EINES NDFEB-PERMANENTMAGNETEN VOM SINTERTYP[2021/22]
English:A METHOD FOR INCREASING THE COERCIVITY OF A SINTERED TYPE NDFEB PERMANENT MAGNET[2021/22]
French:PROCÉDÉ PERMETTANT D'AUGMENTER LA COERCITIVITÉ D'UN AIMANT PERMANENT DE TYPE NDFEB FRITTÉ[2021/22]
Examination procedure06.11.2020Examination requested  [2021/22]
01.12.2021Amendment by applicant (claims and/or description)
17.04.2023Communication of intention to grant the patent
01.06.2023Fee for grant paid
01.06.2023Fee for publishing/printing paid
01.06.2023Receipt of the translation of the claim(s)
Opposition(s)15.04.2024No opposition filed within time limit [2024/25]
Fees paidRenewal fee
22.11.2022Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
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  TooltipAT12.07.2023
BG12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SI12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IE06.11.2023
LU06.11.2023
IS12.11.2023
PT13.11.2023
BE30.11.2023
CH30.11.2023
[2024/51]
Former [2024/47]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SI12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IE06.11.2023
LU06.11.2023
IS12.11.2023
PT13.11.2023
BE30.11.2023
CH30.11.2023
Former [2024/46]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SI12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IE06.11.2023
LU06.11.2023
IS12.11.2023
PT13.11.2023
CH30.11.2023
Former [2024/36]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SI12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
LU06.11.2023
IS12.11.2023
PT13.11.2023
CH30.11.2023
Former [2024/34]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
LU06.11.2023
IS12.11.2023
PT13.11.2023
CH30.11.2023
Former [2024/32]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
MC12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/26]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
IT12.07.2023
LT12.07.2023
LV12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/23]AT12.07.2023
CZ12.07.2023
DK12.07.2023
EE12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
LT12.07.2023
LV12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SK12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/22]AT12.07.2023
CZ12.07.2023
DK12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
LT12.07.2023
LV12.07.2023
NL12.07.2023
PL12.07.2023
RO12.07.2023
RS12.07.2023
SE12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/20]AT12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
LT12.07.2023
LV12.07.2023
NL12.07.2023
PL12.07.2023
RS12.07.2023
SE12.07.2023
SM12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/10]AT12.07.2023
ES12.07.2023
FI12.07.2023
HR12.07.2023
LT12.07.2023
LV12.07.2023
NL12.07.2023
PL12.07.2023
RS12.07.2023
SE12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
PT13.11.2023
Former [2024/09]AT12.07.2023
ES12.07.2023
FI12.07.2023
LT12.07.2023
NL12.07.2023
SE12.07.2023
NO12.10.2023
GR13.10.2023
IS12.11.2023
Former [2024/08]LT12.07.2023
NL12.07.2023
NO12.10.2023
GR13.10.2023
Former [2024/05]NL12.07.2023
Documents cited:Search[I]EP2144257  (INTERMETALLICS CO LTD [JP]);
 [A]EP2521147  (SHINETSU CHEMICAL CO [JP]);
 [A]CN110459397  (ANHUI HANHAI NEW MAT CORP)
ExaminationEP2521147
by applicantCN104112580
 CN105761861
 CN107026003
 CN107492430
 CN107578912
 CN108039259
 CN109390145
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.