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Extract from the Register of European Patents

EP About this file: EP3972936

EP3972936 - PROCESS FOR PURIFYING A SODIUM SULFATE RESIDUE [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  25.02.2022
Database last updated on 03.10.2024
FormerThe international publication has been made
Status updated on  27.11.2020
Most recent event   Tooltip25.05.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
SOLVAY SA
Rue de Ransbeek, 310
1120 Bruxelles / BE
[2022/13]
Inventor(s)01 / WOOD, Michael
19 Kaibin Road, Building 6, Unit 2203,
Xuhui District
Shanghai 200032 / CN
02 / WANG, Yan
Room 103, Block 3, 269 Fenglin Road,
Xuhui District
Shanghai 200032 / CN
03 / BEDEL, Sabrina
12 Rue Guillaume Apollinaire
54110 Dombasle Sur Meurthe / FR
04 / CRIADO, Claude
9 Rue Du Pr. Albert Fruhinsholz
54000 Nancy / FR
05 / WANG, Aiping
Room 501, No. 2, Lane 3151 Yindu Road Minhang
District
Shanghai 201109 / CN
 [2022/13]
Representative(s)Kraus & Lederer PartGmbB
Thomas-Wimmer-Ring 15
80539 München / DE
[N/P]
Former [2022/13]Vande Gucht, Anne
Solvay S.A.
Département de la Propriété Industrielle
Rue de Ransbeek, 310
1120 Bruxelles / BE
Application number, filing date20809363.319.05.2020
[2022/13]
WO2020CN90982
Priority number, dateCN201920741030U22.05.2019         Original published format: CN 201920741030 U
[2022/13]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020233558
Date:26.11.2020
Language:EN
[2020/48]
Type: A1 Application with search report 
No.:EP3972936
Date:30.03.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 26.11.2020 takes the place of the publication of the European patent application.
[2022/13]
Search report(s)International search report - published on:CN26.11.2020
(Supplementary) European search report - dispatched on:EP14.06.2023
ClassificationIPC:C01D5/16
[2022/13]
CPC:
C01D5/16 (EP,CN,KR); C01P2006/80 (EP,CN,KR); C01P2006/82 (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 [2022/13]
TitleGerman:VERFAHREN ZUR REINIGUNG VON NATRIUMSULFATRÜCKSTÄNDEN[2022/13]
English:PROCESS FOR PURIFYING A SODIUM SULFATE RESIDUE[2022/13]
French:PROCÉDÉ DE PURIFICATION D'UN RÉSIDU DE SULFATE DE SODIUM[2022/13]
Entry into regional phase22.12.2021National basic fee paid 
22.12.2021Search fee paid 
22.12.2021Designation fee(s) paid 
22.12.2021Examination fee paid 
Examination procedure22.12.2021Examination requested  [2022/13]
14.12.2023Amendment by applicant (claims and/or description)
Fees paidRenewal fee
31.05.2022Renewal fee patent year 03
31.05.2023Renewal fee patent year 04
24.05.2024Renewal fee patent year 05
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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.
Documents cited:Search[X]US1397497  (JAMES ANDERSON ROBERT) [X] 15 * page 3 - page 4 *;
 [X]WO0162886  (PROCTER & GAMBLE [US], et al) [X] 15 * example - *;
 [A]KR100582801B  (KOREA INST CERAMIC ENG & TECH [KR]) [A] 1-15 * page 3 - page 4 *;
 [X]US2013072371  (JANSEN LAWRENCE E [US], et al) [X] 15 * paragraph [0031] - paragraph [0032] *;
 [A]US8658122  (MARTINEZ MARTINEZ JESUS MANUEL [MX], et al) [A] 1-15* example -; claim - *;
 [X]  - MOULAY S ET AL, "ALGERIAN MONTMORILLONITE AS A BUILDER IN A DETERGENT POWDER", JOURNAL SURFACTDETERG,, (20030401), vol. 6, no. 2, doi:10.1007/S11743-003-0253-6, ISSN 1097-3958, pages 113 - 118, XP001164060 [X] 15 * abstract *

DOI:   http://dx.doi.org/10.1007/s11743-003-0253-6
International search[Y]US6180074  (FOURCOT FABRICE [FR], et al) [Y] 1-20 * claims 1, 11 and 13 *;
 [Y]CN1738787  (MITSUBISHI CHEM CORP [JP]) [Y] 1-20 * claim 1 *;
 [Y]CN103450287  (SHANDONG HUAYI CORN TECHNOLOGY CO LTD) [Y] 1-20* claim 1 *;
 [Y]CN104356007  (LIAONING SHIXING PHARMACEUTICAL AND CHEMICAL CO LTD) [Y] 1-20 * claim 1 *;
 [Y]CN105906126  (SHUANGLIANG ECO-ENERGY SYSTEMS CO LTD) [Y] 1-20 * claim 1 *;
 [Y]CN108658353  (SHIJIAZHUANG GONGDA TECH DEVELOPMENT CO LTD) [Y] 1-20 * claim 1 *
by applicantUS5135734
 US6180074
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.