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Extract from the Register of European Patents

EP About this file: EP3859080

EP3859080 - METHOD FOR MANUFACTURING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.08.2024
Database last updated on 24.03.2026
FormerThe patent has been granted
Status updated on  08.09.2023
FormerGrant of patent is intended
Status updated on  18.05.2023
FormerExamination is in progress
Status updated on  15.12.2022
FormerRequest for examination was made
Status updated on  02.07.2021
FormerThe international publication has been made
Status updated on  16.05.2020
Most recent event   Tooltip26.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 28.01.2026  [2026/05]
Applicant(s)For all designated states
Unicharm Corporation
182 Shimobun
Kinsei-cho
Shikokuchuo-shi, Ehime 799-0111 / JP
[2021/31]
Inventor(s)01 / KONISHI, Takayoshi
c/o UNICHARM CORPORATION Technical Center, 1531-7
Wadahama, Toyohama-cho
Kanonji-shi, Kagawa 769-1602 / JP
02 / HIRAOKA, Toshio
c/o UNICHARM CORPORATION Technical Center, 1531-7
Wadahama, Toyohama-cho
Kanonji-shi, Kagawa 769-1602 / JP
03 / KURITA, Noritomo
c/o UNICHARM CORPORATION Technical Center, 1531-7
Wadahama, Toyohama-cho
Kanonji-shi, Kagawa 769-1602 / JP
04 / BANDOU, Takeshi
c/o UNICHARM CORPORATION Technical Center, 1531-7
Wadahama, Toyohama-cho
Kanonji-shi, Kagawa 769-1602 / JP
 [2021/31]
Representative(s)Dolleymores
9 Rickmansworth Road
Watford, Hertfordshire WD18 0JU / GB
[2021/31]
Application number, filing date19882917.807.11.2019
[2021/31]
WO2019JP43761
Priority number, dateJP2018021171309.11.2018         Original published format: JP 2018211713
JP2018024857028.12.2018         Original published format: JP 2018248570
[2021/31]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020096014
Date:14.05.2020
Language:JA
[2020/20]
Type: A1 Application with search report 
No.:EP3859080
Date:04.08.2021
Language:EN
[2021/31]
Type: B1 Patent specification 
No.:EP3859080
Date:11.10.2023
Language:EN
[2023/41]
Search report(s)International search report - published on:JP14.05.2020
(Supplementary) European search report - dispatched on:EP04.01.2022
ClassificationIPC:D21H11/18, D21H11/14, D21C5/02, D21C9/00, B09B3/00, B09B5/00, B29B17/02, C08J11/16
[2022/04]
CPC:
A61L2/202 (EP); A61L11/00 (EP); C08J11/16 (EP);
D21C5/02 (EP); D21C9/002 (EP); D21C9/007 (EP);
D21H11/14 (EP); D21H11/18 (EP); D21H27/002 (EP);
A61L2101/20 (EP); B09B2101/67 (EP); C08J2300/14 (EP);
C08J2301/02 (EP); Y02W30/62 (EP); Y02W30/64 (EP) (-)
Former IPC [2021/31]D21C5/02, A61L11/00, B09B5/00, B29B17/00, A61L101/10
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 [2021/31]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON PULPEFASERN FÜR ZELLULOSENANOZERFASERUNG[2021/31]
English:METHOD FOR MANUFACTURING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION[2021/31]
French:PROCÉDÉ DE FABRICATION DE FIBRES DE PÂTE À PAPIER POUR NANODÉFIBRAGE DE CELLULOSE[2021/31]
Entry into regional phase27.04.2021Translation filed 
27.04.2021National basic fee paid 
27.04.2021Search fee paid 
27.04.2021Designation fee(s) paid 
27.04.2021Examination fee paid 
Examination procedure27.04.2021Examination requested  [2021/31]
27.07.2022Amendment by applicant (claims and/or description)
14.12.2022Despatch of a communication from the examining division (Time limit: M04)
14.04.2023Reply to a communication from the examining division
19.05.2023Communication of intention to grant the patent
05.09.2023Fee for grant paid
05.09.2023Fee for publishing/printing paid
05.09.2023Receipt of the translation of the claim(s)
Opposition(s)12.07.2024No opposition filed within time limit [2024/38]
Fees paidRenewal fee
03.11.2021Renewal fee patent year 03
13.10.2022Renewal fee patent year 04
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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  TooltipCY07.11.2019
HU07.11.2019
AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
FI11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SI11.10.2023
SK11.10.2023
SM11.10.2023
TR11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
[2026/05]
Former [2025/39]CY07.11.2019
HU07.11.2019
AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
FI11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SI11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2025/36]CY07.11.2019
AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
FI11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SI11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2025/33]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
FI11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SI11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/49]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SI11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/47]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
BE30.11.2023
CH30.11.2023
FR11.12.2023
BG11.01.2024
GB11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/46]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SK11.10.2023
SM11.10.2023
IE07.11.2023
LU07.11.2023
CH30.11.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/40]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
MC11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SK11.10.2023
SM11.10.2023
LU07.11.2023
CH30.11.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/36]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SK11.10.2023
SM11.10.2023
LU07.11.2023
CH30.11.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/35]AT11.10.2023
CZ11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
NL11.10.2023
PL11.10.2023
RO11.10.2023
RS11.10.2023
SM11.10.2023
LU07.11.2023
CH30.11.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/34]AT11.10.2023
DK11.10.2023
EE11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
NL11.10.2023
PL11.10.2023
RS11.10.2023
SM11.10.2023
LU07.11.2023
CH30.11.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/33]AT11.10.2023
DK11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
NL11.10.2023
PL11.10.2023
RS11.10.2023
SM11.10.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/26]AT11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
LV11.10.2023
NL11.10.2023
PL11.10.2023
RS11.10.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/25]AT11.10.2023
ES11.10.2023
HR11.10.2023
LT11.10.2023
NL11.10.2023
PL11.10.2023
RS11.10.2023
BG11.01.2024
NO11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/23]AT11.10.2023
ES11.10.2023
LT11.10.2023
NL11.10.2023
BG11.01.2024
GR12.01.2024
IS11.02.2024
PT12.02.2024
Former [2024/21]LT11.10.2023
NL11.10.2023
BG11.01.2024
GR12.01.2024
IS11.02.2024
Former [2024/20]NL11.10.2023
GR12.01.2024
IS11.02.2024
Former [2024/17]NL11.10.2023
Documents cited:Search[E] EP3617401  (UNICHARM CORP et al.) [E] 1-9,11,12 * figures 2, 3; example 1; claims 1, 4, 6, 7 *
 [A] WO2018025501  (UNICHARM CORP et al.) [A] 1-12 * abstract *
International search[P, X] JP2019005733  (UNI CHARM CORP et al.) [P, X] 1-3, 5-12 * claims 1-12, fig. 2 *
 [A] WO2015190140  (UNICHARM CORP et al.) [A] 1-12
 [A] JP2000084533  (CHO TAKESHI et al.) [A] 1-12
 [A] JP2017100133  (UNI CHARM CORP et al.) [A] 1-12
 [A] JP2014176510  (OJI HOLDINGS CORP et al.) [A] 1-12
by applicantJP2016000881
 JP2010235681
 JP2010254726
   "Soil Diagnosis Guide Description Method", March 1988
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.