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Extract from the Register of European Patents

EP About this file: EP4049746

EP4049746 - DESALINATION PERFORMANCE RESTORING AGENT FOR CELLULOSE ACETATE MEMBRANE AND METHOD FOR RESTORING DESALINATION PERFORMANCE OF CELLULOSE ACETATE MEMBRANE [Right-click to bookmark this link]
StatusExamination is in progress
Status updated on  31.05.2024
Database last updated on 25.09.2024
FormerRequest for examination was made
Status updated on  29.07.2022
FormerThe international publication has been made
Status updated on  01.05.2021
Most recent event   Tooltip13.09.2024New entry: Reply to examination report 
Applicant(s)For all designated states
Mitsubishi Heavy Industries, Ltd.
2-3, Marunouchi 3-Chome
Chiyoda-ku, Tokyo 100-8332 / JP
For all designated states
Kyoeisha Chemical Co., Ltd.
6-12, Minamihonmachi 2-chome
Chuo-ku
Osaka-shi, Osaka 541-0054 / JP
[2022/35]
Inventor(s)01 / HORI, Takayoshi
c/o Mitsubishi Power, Ltd., 3-1, Minatomirai 3-
Chome, Nishi-ku
Yokohama-shi, Kanagawa 220-8401 / JP
02 / MATSUI, Katsunori
c/o Mitsubishi Power, Ltd., 3-1, Minatomirai 3-
Chome, Nishi-ku
Yokohama-shi, Kanagawa 220-8401 / JP
03 / YOKOGAWA, Sho
c/o Mitsubishi Power, Ltd., 3-1, Minatomirai 3-
Chome, Nishi-ku
Yokohama-shi, Kanagawa 220-8401 / JP
04 / ITO, Yoshiaki
c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3,
Marunouchi 3-Chome, Chiyoda-ku
Tokyo 100-8332 / JP
05 / KAMITO, Ryo
c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 2-3,
Marunouchi 3-Chome, Chiyoda-ku
Tokyo 100-8332 / JP
06 / KATSUNISHI, Yoshihisa
c/o Nara Laboratory of Kyoeisha Chemical Co., Ltd.
2-5, Saikujo-cho 5-chome
Nara-shi, Nara 630-8453 / JP
07 / UEDA, Atsuyoshi
c/o Nara Laboratory of Kyoeisha Chemical Co., Ltd.
2-5, Saikujo-cho 5-chome
Nara-shi, Nara 630-8453 / JP
08 / MASUI, Takahiro
c/o Nara Laboratory of Kyoeisha Chemical Co., Ltd.
2-5, Saikujo-cho 5-chome
Nara-shi, Nara 630-8453 / JP
 [2022/35]
Representative(s)Hoffmann Eitle
Patent- und Rechtsanwälte PartmbB
Arabellastraße 30
81925 München / DE
[2022/35]
Application number, filing date20878758.020.10.2020
[2022/35]
WO2020JP39353
Priority number, dateJP2019019370124.10.2019         Original published format: JP 2019193701
[2022/35]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021079867
Date:29.04.2021
Language:JA
[2021/17]
Type: A1 Application with search report 
No.:EP4049746
Date:31.08.2022
Language:EN
[2022/35]
Search report(s)International search report - published on:JP29.04.2021
(Supplementary) European search report - dispatched on:EP05.10.2023
ClassificationIPC:B01D65/00, B01D67/00, B01D69/12, B01D71/16, B01D71/38
[2022/35]
CPC:
B01D65/108 (EP); B01D65/06 (US); B01D67/00 (US);
B01D69/12 (EP,US); B01D71/16 (EP,US); B01D71/381 (EP,US);
B01D2321/162 (US); B01D61/025 (EP); Y02A20/131 (EP) (-)
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 [2022/35]
TitleGerman:ENTSALZUNGSLEISTUNGWIEDERHERSTELLUNGSMITTEL FÜR CELLULOSEACETATMEMBRAN UND VERFAHREN ZUR WIEDERHERSTELLUNG DER ENTSALZUNGSLEISTUNG VON CELLULOSEACETATMEMBRAN[2022/35]
English:DESALINATION PERFORMANCE RESTORING AGENT FOR CELLULOSE ACETATE MEMBRANE AND METHOD FOR RESTORING DESALINATION PERFORMANCE OF CELLULOSE ACETATE MEMBRANE[2022/35]
French:AGENT DE RESTAURATION DE PERFORMANCE DE DESSALEMENT POUR MEMBRANE À BASE D'ACÉTATE DE CELLULOSE ET PROCÉDÉ DE RESTAURATION DE PERFORMANCE DE DESSALEMENT D'UNE MEMBRANE À BASE D'ACÉTATE DE CELLULOSE[2022/35]
Entry into regional phase03.02.2022Translation filed 
03.02.2022National basic fee paid 
03.02.2022Search fee paid 
03.02.2022Designation fee(s) paid 
03.02.2022Examination fee paid 
Examination procedure03.02.2022Examination requested  [2022/35]
09.04.2024Amendment by applicant (claims and/or description)
09.04.2024Date on which the examining division has become responsible
04.06.2024Despatch of a communication from the examining division (Time limit: M04)
12.09.2024Reply to a communication from the examining division
Fees paidRenewal fee
18.10.2022Renewal fee patent year 03
16.10.2023Renewal fee patent year 04
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Documents cited:Search[A]US3877978  (KREMEN SEYMOUR S, et al);
 [X]JPS6230509  (TORAY INDUSTRIES);
 [X]WO2019138880  (KURITA WATER IND LTD [JP])
International search[A]JPS5232869B  ;
 [A]JP2014128760  (KURITA WATER IND LTD)
by applicantJPS6251953B
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.