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Extract from the Register of European Patents

EP About this file: EP3686300

EP3686300 - SODIUM REMOVAL METHOD, LITHIUM CONCENTRATING METHOD, AND LITHIUM RECOVERY METHOD [Right-click to bookmark this link]
Former [2020/31]SODIUM REMOVAL METHOD, METAL CONCENTRATING METHOD, AND METAL RECOVERY METHOD
[2023/49]
StatusNo opposition filed within time limit
Status updated on  07.02.2025
Database last updated on 21.03.2026
FormerThe patent has been granted
Status updated on  01.03.2024
FormerGrant of patent is intended
Status updated on  19.11.2023
FormerRequest for examination was made
Status updated on  05.02.2021
FormerThe application has been published
Status updated on  26.06.2020
Most recent event   Tooltip13.03.2026Lapse of the patent in a contracting state
New state(s): HU		published on 15.04.2026 [2026/16]
Applicant(s)For all designated states
JX Metals Circular Solutions Co., Ltd.
10-4, Toranomon 2-chome
Minato-ku
Tokyo 105-8417 / JP
[2024/42]
Former [2024/14]For all designated states
JX Metals Corporation
10-4, Toranomom 2-chome
Minato-ku
Tokyo 105-8417 / JP
Former [2020/31]For all designated states
JX Nippon Mining & Metals Corporation
1-2, Otemachi 1-chome
Chiyoda-ku
Tokyo 100-8164 / JP
Inventor(s)01 / ARIYOSHI, Hirotaka
c/o Technology Development Center
JX Nippon Mining & Metals Corporation
1-2 Shirogane-cho 1-chome
Hitachi-shi, Ibaraki 317-0056 / JP
02 / TOMITA, Isao
c/o Technology Development Center
JX Nippon Mining & Metals Corporation
1-2 Shirogane-cho 1-chome
Hitachi-shi, Ibaraki 317-0056 / JP
03 / ABE, Hiroshi
c/o Technology Development Center
JX Nippon Mining & Metals Corporation
1-2 Shirogane-cho 1-chome
Hitachi-shi, Ibaraki 317-0056 / JP
 [2020/31]
Representative(s)Arnold & Siedsma
Bezuidenhoutseweg 57
2594 AC The Hague / NL
[2020/31]
Application number, filing date20159890.101.08.2018
[2020/31]
Priority number, dateJP2017015016502.08.2017         Original published format: JP 2017150165
JP2017015016602.08.2017         Original published format: JP 2017150166
[2020/31]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3686300
Date:29.07.2020
Language:EN
[2020/31]
Type: B1 Patent specification 
No.:EP3686300
Date:03.04.2024
Language:EN
[2024/14]
Search report(s)(Supplementary) European search report - dispatched on:EP24.06.2020
ClassificationIPC:C22B26/12, C22B3/22, C22B7/00, B01D9/00, H01M10/54, // B01D11/04
[2023/49]
CPC:
C22B3/22 (EP); C22B3/08 (KR,US); C22B26/12 (EP,KR,US);
B01D9/0004 (EP); B01D9/02 (KR); C22B7/00 (KR);
C22B7/007 (EP,US); H01M10/0525 (US); H01M10/54 (EP,KR,US);
B01D11/0492 (EP); Y02E60/10 (EP); Y02P10/20 (EP);
Y02W30/84 (EP) (-)
Former IPC [2020/31]C22B26/12, C22B3/22, C22B7/00, B01D9/00
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 [2021/10]  
Former [2020/31]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 
TitleGerman:NATRIUMENTFERNUNGSVERFAHREN, LITHIUMKONZENTRIERUNGSVERFAHREN UND LITHIUMRÜCKGEWINNUNGSVERFAHREN[2023/49]
English:SODIUM REMOVAL METHOD, LITHIUM CONCENTRATING METHOD, AND LITHIUM RECOVERY METHOD[2023/49]
French:PROCÉDÉ D'ÉLIMINATION DE SODIUM, PROCÉDÉ DE CONCENTRATION DE LITHIUM ET PROCÉDÉ DE RÉCUPÉRATION DE LITHIUM[2023/49]
Former [2020/31]NATRIUMENTFERNUNGSVERFAHREN, METALLKONZENTRIERUNGSVERFAHREN UND METALLRÜCKGEWINNUNGSVERFAHREN
Former [2020/31]SODIUM REMOVAL METHOD, METAL CONCENTRATING METHOD, AND METAL RECOVERY METHOD
Former [2020/31]PROCÉDÉ D'ÉLIMINATION DE SODIUM, PROCÉDÉ DE CONCENTRATION DE MÉTAL ET PROCÉDÉ DE RÉCUPÉRATION DE MÉTAL
Examination procedure28.01.2021Amendment by applicant (claims and/or description)
28.01.2021Examination requested  [2021/10]
28.01.2021Date on which the examining division has become responsible
20.11.2023Communication of intention to grant the patent
27.02.2024Fee for grant paid
27.02.2024Fee for publishing/printing paid
27.02.2024Receipt of the translation of the claim(s)
Parent application(s)   TooltipEP18840703.5  / EP3663420
Opposition(s)06.01.2025No opposition filed within time limit [2025/11]
Fees paidRenewal fee
27.08.2020Renewal fee patent year 03
27.08.2021Renewal fee patent year 04
29.08.2022Renewal fee patent year 05
28.08.2023Renewal fee patent year 06
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  TooltipCY01.08.2018
HU01.08.2018
CZ03.04.2024
ES03.04.2024
HR03.04.2024
MC03.04.2024
PL03.04.2024
RO03.04.2024
SK03.04.2024
SM03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IE01.08.2024
IS03.08.2024
CH31.08.2024
[2026/16]
Former [2026/10]CY01.08.2018
CZ03.04.2024
ES03.04.2024
HR03.04.2024
MC03.04.2024
PL03.04.2024
RO03.04.2024
SK03.04.2024
SM03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IE01.08.2024
IS03.08.2024
CH31.08.2024
Former [2025/36]CZ03.04.2024
ES03.04.2024
HR03.04.2024
MC03.04.2024
PL03.04.2024
RO03.04.2024
SK03.04.2024
SM03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IE01.08.2024
IS03.08.2024
CH31.08.2024
Former [2025/22]CZ03.04.2024
ES03.04.2024
HR03.04.2024
MC03.04.2024
PL03.04.2024
RO03.04.2024
SK03.04.2024
SM03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IS03.08.2024
CH31.08.2024
Former [2025/10]CZ03.04.2024
ES03.04.2024
HR03.04.2024
PL03.04.2024
RO03.04.2024
SK03.04.2024
SM03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IS03.08.2024
Former [2024/49]CZ03.04.2024
ES03.04.2024
HR03.04.2024
PL03.04.2024
NO03.07.2024
RS03.07.2024
GR04.07.2024
IS03.08.2024
Former [2024/48]CZ03.04.2024
ES03.04.2024
HR03.04.2024
NO03.07.2024
GR04.07.2024
IS03.08.2024
Former [2024/47]HR03.04.2024
NO03.07.2024
GR04.07.2024
IS03.08.2024
Former [2024/46]HR03.04.2024
NO03.07.2024
IS03.08.2024
Documents cited:Search[XY] CN106629787  (ABA ZHONGSHENG LITHIUM CO LTD et al.) [X] 1-6,8-12 * paragraphs [0002] , [0012] - [0032] *[Y] 7
 [X]   REDDY S T ET AL: "Recovery of Na"2SO"4.10H"2O from a reverse osmosis retentate by eutectic freeze crystallisation technology", CHEMICAL ENGINEERING RESEARCH AND DESIGN, ELSEVIER, AMSTERDAM, NL, vol. 88, no. 9, 1 September 2010 (2010-09-01), pages 1153 - 1157, XP027252198, ISSN: 0263-8762, [retrieved on 20100118] [X] 1,4-6,8,11,12 * pages 1155-1156, section 3.3;; figures 4,5; table 1 *
 [Y]   NAYL A A ET AL: "Acid leaching of mixed spent Li-ion batteries", ARABIAN JOURNAL OF CHEMISTRY, ELSEVIER, AMSTERDAM, NL, 12 April 2014 (2014-04-12), XP085107565, ISSN: 1878-5352, DOI: 10.1016/J.ARABJC.2014.04.001 [Y] 7 * page S3634 - page S3638; figure 5 *

DOI:   http://dx.doi.org/10.1016/j.arabjc.2014.04.001
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.