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Extract from the Register of European Patents

EP About this file: EP3251130

EP3251130 - IRON NITRIDE MAGNETIC MATERIALS [Right-click to bookmark this link]
Former [2017/49]APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALS
[2020/09]
StatusNo opposition filed within time limit
Status updated on  21.05.2021
Database last updated on 24.04.2024
FormerThe patent has been granted
Status updated on  12.06.2020
FormerGrant of patent is intended
Status updated on  09.06.2020
FormerExamination is in progress
Status updated on  25.05.2020
FormerGrant of patent is intended
Status updated on  03.02.2020
FormerExamination is in progress
Status updated on  29.06.2019
FormerRequest for examination was made
Status updated on  03.11.2017
FormerThe international publication has been made
Status updated on  28.07.2017
Most recent event   Tooltip08.07.2022Lapse of the patent in a contracting state
New state(s): MK		published on 10.08.2022  [2022/32]
Applicant(s)For all designated states
Regents of the University of Minnesota
600 McNamara Alumni Center 200 Oak Street S.E.
Minneapolis, MN 55455 / US
[2017/49]
Inventor(s)01 / WANG, Jian-Ping
1369 Woodcrest Avenue
Shoreview, MN 55126 / US
02 / JIANG, Yanfeng
1040 6th Street SE
Minneapolis, MN 55414 / US
 [2020/29]
Former [2017/49]01 / WANG, Jian-Ping
1369 Woodcrest Avenue
Shoreview, Minnesota 55126 / US
02 / JIANG, Yanfeng
1040 6th Street SE
Minneapolis, Minnesota 55414 / US
Representative(s)Murgitroyd & Company
165-169 Scotland Street
Glasgow G5 8PL / GB
[N/P]
Former [2020/29]Murgitroyd & Company
Murgitroyd House
165-169 Scotland Street
Glasgow G5 8PL / GB
Former [2017/49]chapman + co
18 Staple Gardens
Winchester, Hampshire SO23 8SR / GB
Application number, filing date15880599.422.07.2015
[2017/49]
WO2015US41532
Priority number, dateUS201562107700P26.01.2015         Original published format: US 201562107700 P
[2017/49]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2016122712
Date:04.08.2016
Language:EN
[2016/31]
Type: A1 Application with search report 
No.:EP3251130
Date:06.12.2017
Language:EN
The application published by WIPO in one of the EPO official languages on 04.08.2016 takes the place of the publication of the European patent application.
[2017/49]
Type: B1 Patent specification 
No.:EP3251130
Date:15.07.2020
Language:EN
[2020/29]
Search report(s)International search report - published on:KR04.08.2016
(Supplementary) European search report - dispatched on:EP19.10.2018
ClassificationIPC:H01F41/02, H01F1/08, H01F1/06, H01F1/047
[2020/09]
CPC:
H01F41/0273 (EP,US); H01F1/04 (KR); B22D27/02 (EP,US);
C22C38/001 (EP,US); H01F1/047 (EP,US); H01F1/06 (US);
H01F1/08 (EP,US); H01F41/0266 (KR,US); H01F7/02 (KR);
H02K1/02 (US) (-)
Former IPC [2018/47]H01F41/02, H01F1/08, H01F1/06
Former IPC [2017/49]H01F1/04, H01F41/02
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 [2017/49]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
TitleGerman:EISENNITRIDMAGNETMATERIALIEN[2020/09]
English:IRON NITRIDE MAGNETIC MATERIALS[2020/09]
French:MATÉRIAUX MAGNÉTIQUES À BASE DE NITRURE DE FER[2020/09]
Former [2017/49]SYNTHESE EINES ANGELEGTEN MAGNETFELDES UND VERARBEITUNG VON EISENNITRIDMAGNETMATERIALIEN
Former [2017/49]APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALS
Former [2017/49]SYNTHÈSE DE CHAMP MAGNÉTIQUE APPLIQUÉ ET TRAITEMENT DE MATÉRIAUX MAGNÉTIQUES À BASE DE NITRURE DE FER
Entry into regional phase28.07.2017National basic fee paid 
28.07.2017Search fee paid 
28.07.2017Designation fee(s) paid 
28.07.2017Examination fee paid 
Examination procedure23.05.2016Request for preliminary examination filed
International Preliminary Examining Authority: KR
28.07.2017Examination requested  [2017/49]
28.07.2017Date on which the examining division has become responsible
02.05.2019Amendment by applicant (claims and/or description)
03.07.2019Despatch of a communication from the examining division (Time limit: M06)
20.12.2019Reply to a communication from the examining division
04.02.2020Communication of intention to grant the patent
21.05.2020Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO
21.05.2020Fee for grant paid
21.05.2020Fee for publishing/printing paid
09.06.2020Information about intention to grant a patent
09.06.2020Receipt of the translation of the claim(s)
Opposition(s)16.04.2021No opposition filed within time limit [2021/25]
Fees paidRenewal fee
28.07.2017Renewal fee patent year 03
27.07.2018Renewal fee patent year 04
29.07.2019Renewal 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.
Lapses during opposition  TooltipHU22.07.2015
AL15.07.2020
AT15.07.2020
CY15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
MC15.07.2020
MK15.07.2020
MT15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SI15.07.2020
SK15.07.2020
SM15.07.2020
TR15.07.2020
IE22.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
[2022/32]
Former [2022/28]HU22.07.2015
AL15.07.2020
AT15.07.2020
CY15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
MC15.07.2020
MT15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SI15.07.2020
SK15.07.2020
SM15.07.2020
TR15.07.2020
IE22.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2022/27]HU22.07.2015
AL15.07.2020
AT15.07.2020
CY15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
MT15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SI15.07.2020
SK15.07.2020
SM15.07.2020
TR15.07.2020
IE22.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/37]AL15.07.2020
AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SI15.07.2020
SK15.07.2020
SM15.07.2020
IE22.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/36]AL15.07.2020
AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SI15.07.2020
SK15.07.2020
SM15.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/28]AL15.07.2020
AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SK15.07.2020
SM15.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/25]AL15.07.2020
AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SM15.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/23]AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SM15.07.2020
LU22.07.2020
BE31.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/22]AT15.07.2020
CZ15.07.2020
DK15.07.2020
EE15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RO15.07.2020
RS15.07.2020
SE15.07.2020
SM15.07.2020
LU22.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/20]AT15.07.2020
DK15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
IT15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RS15.07.2020
SE15.07.2020
LU22.07.2020
CH31.07.2020
LI31.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/17]AT15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
LT15.07.2020
LV15.07.2020
NL15.07.2020
PL15.07.2020
RS15.07.2020
SE15.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/10]AT15.07.2020
ES15.07.2020
FI15.07.2020
HR15.07.2020
LT15.07.2020
LV15.07.2020
PL15.07.2020
RS15.07.2020
SE15.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
IS15.11.2020
PT16.11.2020
Former [2021/09]AT15.07.2020
ES15.07.2020
FI15.07.2020
LT15.07.2020
SE15.07.2020
BG15.10.2020
NO15.10.2020
GR16.10.2020
PT16.11.2020
Former [2021/08]ES15.07.2020
FI15.07.2020
LT15.07.2020
SE15.07.2020
BG15.10.2020
NO15.10.2020
PT16.11.2020
Former [2021/07]FI15.07.2020
LT15.07.2020
NO15.10.2020
Documents cited:Search[AD]WO2013026007  (UNIV MINNESOTA [US], et al) [AD] 1-16 * paragraphs [0057] - [0064]; figures 4,5a,5b *;
 [AD]WO2014124135  (UNIV MINNESOTA [US]) [AD] 1-16 * paragraphs [0128] - [0130] *;
 [XYI]  - Y-C. Shih, "Lawrence Berkeley National Laboratory Recent Work Title THE OBSERVATION OF THE HABIT PLANE SHIFT AND THE MORPHOLOGY OF a"" NITRIDE (Fe16N2) PRECIPITATE IN a-Fe", Lawrence Berkeley National Laboratory Recent Work Title THE OBSERVATION OF THE HABIT PLANE SHIFT AND THE MORPHOLOGY OF a"" NITRIDE (Fe16N2) PRECIPITATE IN a-Fe, (19820601), XP055511910 [X] 1-3,5,6,13,15 * figure 6 * [Y] 7-11,16 [I] 4,12
 [XYI]  - WATANABE Y ET AL, "Effect of magnetic fields on the formation of Fe"1"6N"2 precipitates in Fe@?N alloys", MATERIALS SCIENCE AND ENGINEERING: A, ELSEVIER, AMSTERDAM, NL, vol. 146, no. 1-2, doi:10.1016/0921-5093(91)90274-Q, ISSN 0921-5093, (19911025), pages 151 - 160, (19911025), XP024169580 [X] 1-3,5,6,13-15 * abstract * * page 152, column 2, paragraph 1 * [Y] 7-11,16 [I] 4,12

DOI:   http://dx.doi.org/10.1016/0921-5093(91)90274-Q
 [Y]  - JIANG YANFENG ET AL, "9 T high magnetic field annealing effects on FeN bulk sample", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS, US, vol. 115, no. 17, doi:10.1063/1.4868493, ISSN 0021-8979, (20140507), (19010101), XP012183191 [Y] 7-11,16 * abstract * * pages 17A758-1, column 1, paragraph 1 * * pages 17A758-3, column 1, paragraph 5 - column 2, paragraph 2; figure 2; tables I,II *

DOI:   http://dx.doi.org/10.1063/1.4868493
 [A]  - MIGAKU TAKAHASHI ET AL, "MAGNETIC MOMENT OF -FE16N2 FILMS (INVITED)", JOURNAL OF APPLIED PHYSICS, AMERICAN INSTITUTE OF PHYSICS, US, (19941115), vol. 76, no. 10, PART 02, doi:10.1063/1.358431, ISSN 0021-8979, pages 6642 - 6647, XP000508806 [A] 1-16 * abstract *

DOI:   http://dx.doi.org/10.1063/1.358431
International search[A]JP2009259402  (HITACHI MAXELL) [A] 1-3, 17-19, 31, 40-42 , 69-72 * See abstract and claims 1-3. *;
 [XA]US2011074531  (YAMASHITA FUMITOSHI [JP], et al) [X] 1-3 * See paragraphs [0103], [0106] and claim 1. * [A] 17-19, 31, 40-42 , 69-72;
 [A]WO2012159096  (UNIV CALIFORNIA [US], et al) [A] 1-3, 17-19, 31, 40-42 , 69-72 * See abstract and claims 1-4. *;
 [A]US2013140076  (LEE SANG-KWAN [KR], et al) [A] 1-3, 17-19, 31, 40-42 , 69-42* See paragraph [0005] and claims 1,11,15-25. *;
 [X]  - J.M.D. COEY et al., "Magnetic nitrides", Journal of Magnetism and Magnetic Materials, vol. 200, no. Issues 1-3, (19991000), pages 405 - 424, URL: http://www.sciencedirect.com/science/article/pii/S0304885399004291, XP004364026 [X] 17-19, 31, 40-42 , 69-72 * See pages 406,410,415-416,421. *

DOI:   http://dx.doi.org/10.1016/S0304-8853(99)00429-1
ExaminationJP2012253248
by applicant   - YOSHIMI WATANABE et al., "Effect of magnetic fields on the formation of Fei N precipitates in FeN alloys", Materials Science and Engineering, (19911025), vol. 146, no. 1-2, pages 151 - 160
    - JIANG YANFENG et al., "9 T high magnetic field annealing effects of FeN bulk sample", Journal of Applied Physics, (20140507), vol. 115, no. 7
 WO2012US51382
 WO2014US15104
 WO2014US43902
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.