blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP3271329

EP3271329 - NOVEL HYDROPHILIC LINKERS AND LIGAND-DRUG CONJUGATES THEREOF [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.06.2022
Database last updated on 05.10.2024
FormerThe patent has been granted
Status updated on  16.07.2021
FormerGrant of patent is intended
Status updated on  03.03.2021
FormerExamination is in progress
Status updated on  03.12.2019
FormerRequest for examination was made
Status updated on  28.12.2017
FormerThe international publication has been made
Status updated on  11.11.2016
Most recent event   Tooltip13.09.2024Lapse of the patent in a contracting state
New state(s): MT
published on 16.10.2024 [2024/42]
Applicant(s)For all designated states
Hangzhou Dac Biotech Co., Ltd
Building 12, ZhengTaiZhongZi Technology Park
No. 260 Sixth Street, HEDA
Hangzhou City, Zhejiang Province 310018 / CN
[2018/04]
Inventor(s)01 / SUN, Sanxing
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
02 / ZHAO, Robert Yongxin
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
03 / LI, Xing
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
04 / GUO, Huihui
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
05 / JIA, Junxiang
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
06 / XIE, Hongsheng
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
07 / ZHOU, Xiaomai
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
08 / HUANG, Yuanyuan
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
09 / YANG, Qingliang
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
10 / ZHUO, Xiaotao
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
11 / YE, Hangbo
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
12 / GAI, Shun
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
13 / QU, Lan
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
14 / LI, Wenjun
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
15 / LIN, Chen
452 Sixth Street
Building 2 Room B2005
Hangzhou Zhejiang 310018 / CN
 [2018/04]
Representative(s)Haseltine Lake Kempner LLP
One Portwall Square
Portwall Lane
Bristol BS1 6BH / GB
[N/P]
Former [2021/33]Haseltine Lake Kempner LLP
Redcliff Quay
120 Redcliff Street
Bristol BS1 6HU / GB
Former [2018/04]Haseltine Lake LLP
Redcliff Quay 120 Redcliff Street
Bristol BS1 6HU / GB
Application number, filing date15885301.019.03.2015
[2018/04]
WO2015IB52011
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2016147031
Date:22.09.2016
Language:EN
[2016/38]
Type: A2 Application without search report 
No.:EP3271329
Date:24.01.2018
Language:EN
The application published by WIPO in one of the EPO official languages on 22.09.2016 takes the place of the publication of the European patent application.
[2018/04]
Type: B1 Patent specification 
No.:EP3271329
Date:18.08.2021
Language:EN
[2021/33]
Search report(s)International search report - published on:CN10.11.2016
(Supplementary) European search report - dispatched on:EP28.03.2019
ClassificationIPC:A61K47/68, C07D207/404, C07D207/327, C07F9/6558, C07K16/28, A61P35/00, C07F9/572, C07K16/00, C07D207/46
[2021/10]
CPC:
C07F9/572 (EP,US); A61K47/68033 (EP,US); A61K47/6811 (US);
A61K47/6849 (US); A61K47/6851 (US); A61K47/6889 (US);
C07D207/46 (EP,US); C07F9/65583 (EP,US); C07K16/00 (US);
C07K16/2878 (US) (-)
Former IPC [2019/18]C07D207/404, C07D207/327, C07F9/6558, C07K16/28, A61P35/00, C07F9/572, C07K16/00, C07D207/46, A61K47/68
Former IPC [2018/04]C07D207/404, C07D207/327, C07F9/38, C07K16/28, A61P35/00
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 [2018/04]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
TitleGerman:NEUARTIGE HYDROPHILE LINKER UND LIGANDENARZNEIMITTELKONJUGATE DAVON[2018/04]
English:NOVEL HYDROPHILIC LINKERS AND LIGAND-DRUG CONJUGATES THEREOF[2018/04]
French:NOUVEAUX LIEURS HYDROPHILES ET CONJUGUÉS LIGAND-MÉDICAMENT LES COMPRENANT[2018/04]
Entry into regional phase08.09.2017National basic fee paid 
08.09.2017Search fee paid 
08.09.2017Designation fee(s) paid 
08.09.2017Examination fee paid 
Examination procedure08.09.2017Examination requested  [2018/04]
08.09.2017Date on which the examining division has become responsible
24.10.2019Amendment by applicant (claims and/or description)
06.12.2019Despatch of a communication from the examining division (Time limit: M02)
14.02.2020Reply to a communication from the examining division
24.04.2020Despatch of a communication from the examining division (Time limit: M02)
23.06.2020Reply to a communication from the examining division
15.07.2020Despatch of a communication from the examining division (Time limit: M02)
11.09.2020Reply to a communication from the examining division
04.03.2021Communication of intention to grant the patent
12.07.2021Fee for grant paid
12.07.2021Fee for publishing/printing paid
12.07.2021Receipt of the translation of the claim(s)
Divisional application(s)EP21184933.6  / EP3912982
Opposition(s)19.05.2022No opposition filed within time limit [2022/30]
Fees paidRenewal fee
08.09.2017Renewal fee patent year 03
27.03.2018Renewal fee patent year 04
26.03.2019Renewal fee patent year 05
27.03.2020Renewal fee patent year 06
12.03.2021Renewal fee patent year 07
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  TooltipAL18.08.2021
CY18.08.2021
CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
MK18.08.2021
MT18.08.2021
RO18.08.2021
RS18.08.2021
SI18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
[2024/42]
Former [2024/22]AL18.08.2021
CY18.08.2021
CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
MK18.08.2021
RO18.08.2021
RS18.08.2021
SI18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
Former [2024/20]AL18.08.2021
CY18.08.2021
CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
RO18.08.2021
RS18.08.2021
SI18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/36]AL18.08.2021
CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
RO18.08.2021
RS18.08.2021
SI18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/29]AL18.08.2021
CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
RO18.08.2021
RS18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/25]CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
RO18.08.2021
RS18.08.2021
SK18.08.2021
SM18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/24]CZ18.08.2021
EE18.08.2021
HR18.08.2021
LT18.08.2021
LV18.08.2021
RO18.08.2021
RS18.08.2021
SK18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/10]HR18.08.2021
LT18.08.2021
LV18.08.2021
RS18.08.2021
BG18.11.2021
IS18.12.2021
Former [2022/09]LT18.08.2021
RS18.08.2021
BG18.11.2021
Former [2022/08]LT18.08.2021
BG18.11.2021
Documents cited:Search[X]WO2006107175  (INKTEC CO LTD [KR], et al);
 [XI]WO2012143497  (BAYER IP GMBH [DE], et al);
 [X]US2013144541  (RYCHNOVSKY SCOTT [US], et al);
 [X]WO2014080251  (HANGZHOU DAC BIOTECH CO LTD [CN], et al);
 [XAI]WO2014151030  (NOVARTIS AG [CH], et al);
 [XAI]WO2015028850  (HANGZHOU DAC BIOTECH CO LTD [CN])
International search[A]WO2010126551  (IMMUNOGEN INC [US], et al);
 [X]WO2012143497  (BAYER IP GMBH [DE], et al);
 [X]WO2014080251  (HANGZHOU DAC BIOTECH CO LTD [CN], et al)
ExaminationEP3041846
by applicantWO2014080251
 WO2015028850
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.