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Extract from the Register of European Patents

EP About this file: EP3733651

EP3733651 - METHOD FOR PRODUCING CALCOBUTROL [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  25.08.2023
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  16.09.2022
FormerGrant of patent is intended
Status updated on  10.05.2022
FormerRequest for examination was made
Status updated on  02.10.2020
FormerThe international publication has been made
Status updated on  27.07.2019
Most recent event   Tooltip22.08.2025Lapse of the patent in a contracting state
New state(s): HU		published on 24.09.2025  [2025/39]
Applicant(s)For all designated states
Enzychem Lifesciences Corporation
59, Bio valley-ro
Jecheon-si
Chungcheongbuk-do 27159 / KR
[2020/45]
Inventor(s)01 / LEE, Jae Yong
116-502 24, Jinsan-ro, Suji-gu
Yongin-si, Gyeonggi-do 16927 / KR
02 / LEE, Jong Soo
103-1403 48, Bangok-gil
Wonju-si, Gangwon-do 26457 / KR
03 / KANG, Byung Kyu
102-208 5-12, Yongdu-daero 36-gil, Bongyang-eup
Jecheon-si, Chungcheongbuk-do 27109 / KR
04 / LEE, Byuong Woo
102-1405 5-12, Yongdu-daero 36-gil, Bongyang-eup
Jecheon-si, Chungcheongbuk-do 27109 / KR
05 / LEE, Sang Oh
205 77-16, Sinseongnam-ro, Yuseong-gu
Daejeon 34116 / KR
06 / YUN, Dae Myoung
c/o Enzychem Lifesciences Corporation
59, Bio valley-ro
Jecheon-si, Chungcheongbuk-do 27159 / KR
07 / BANG, Jae Hun
18, Wolbae-ro 65-gil, Dalseo-gu
Daegu 42742 / KR
08 / SOHN, Ki Young
104-803 95, Dangsan-ro, Yeongdeungpo-gu
Seoul 07264 / KR
 [2021/23]
Former [2020/45]01 / LEE, Jae Yong
116-502 24, Jinsan-ro, Suji-gu
Yongin-si, Gyeonggi-do 16927 / KR
02 / LEE, Jong Soo
103-1403 48, Bangok-gil
Wonju-si, Gangwon-do 26457 / KR
03 / KANG, Byung Kyu
102-208 5-12, Yongdu-daero 36-gil, Bongyang-eup
Jecheon-si, Chungcheongbuk-do 27109 / KR
04 / LEE, Byuong Woo
102-1405 5-12, Yongdu-daero 36-gil, Bongyang-eup
Jecheon-si, Chungcheongbuk-do 27109 / KR
05 / LEE, Sang Oh
205 77-16, Sinseongnam-ro, Yuseong-gu
Daejeon 34116 / KR
06 / YUN, Dae Myoung
35, Musil-ro 55beon-gil
Wonju-si, Gangwon-do 26432 / KR
07 / BANG, Jae Hun
18, Wolbae-ro 65-gil, Dalseo-gu
Daegu 42742 / KR
08 / SOHN, Ki Young
104-803 95, Dangsan-ro, Yeongdeungpo-gu
Seoul 07264 / KR
Representative(s)Henkel & Partner mbB
Patentanwaltskanzlei, Rechtsanwaltskanzlei
Maximiliansplatz 21
80333 München / DE
[2022/42]
Former [2020/45]Henkel & Partner mbB
Patentanwaltskanzlei, Rechtsanwaltskanzlei
Maximiliansplatz 21
80333 München / DE
Application number, filing date19740840.411.01.2019
[2020/45]
WO2019KR00484
Priority number, dateKR2018000731119.01.2018         Original published format: KR 20180007311
[2020/45]
Filing languageKO
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019143074
Date:25.07.2019
Language:KO
[2019/30]
Type: A1 Application with search report 
No.:EP3733651
Date:04.11.2020
Language:EN
[2020/45]
Type: B1 Patent specification 
No.:EP3733651
Date:19.10.2022
Language:EN
[2022/42]
Search report(s)International search report - published on:KR25.07.2019
(Supplementary) European search report - dispatched on:EP21.05.2021
ClassificationIPC:C07D257/02, A61K49/06, A61K49/10, A61K49/12
[2021/25]
CPC:
C07D257/02 (EP,US); A61K49/06 (EP); A61K49/10 (EP,US)
Former IPC [2020/45]C07D257/02, A61K49/06, A61K49/10
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 [2020/45]
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 CALCOBUTROL[2020/45]
English:METHOD FOR PRODUCING CALCOBUTROL[2020/45]
French:PROCÉDÉ DE PRÉPARATION DE CALCOBUTROL[2020/45]
Entry into regional phase29.07.2020Translation filed 
29.07.2020National basic fee paid 
29.07.2020Search fee paid 
29.07.2020Designation fee(s) paid 
29.07.2020Examination fee paid 
Examination procedure29.07.2020Examination requested  [2020/45]
10.12.2021Amendment by applicant (claims and/or description)
11.05.2022Communication of intention to grant the patent
07.09.2022Fee for grant paid
07.09.2022Fee for publishing/printing paid
07.09.2022Receipt of the translation of the claim(s)
Opposition(s)20.07.2023No opposition filed within time limit [2023/39]
Fees paidRenewal fee
25.01.2021Renewal fee patent year 03
25.01.2022Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
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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  TooltipCY11.01.2019
HU11.01.2019
AL19.10.2022
AT19.10.2022
BG19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
MC19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
IE11.01.2023
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
[2025/39]
Former [2025/36]CY11.01.2019
AL19.10.2022
AT19.10.2022
BG19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
MC19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
IE11.01.2023
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2024/51]AL19.10.2022
AT19.10.2022
BG19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
MC19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
IE11.01.2023
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2024/29]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
MC19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
IE11.01.2023
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2024/08]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
IE11.01.2023
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/52]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
FR31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/51]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SI19.10.2022
SK19.10.2022
SM19.10.2022
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/49]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SK19.10.2022
SM19.10.2022
LU11.01.2023
NO19.01.2023
GR20.01.2023
BE31.01.2023
CH31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/47]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SK19.10.2022
SM19.10.2022
LU11.01.2023
NO19.01.2023
GR20.01.2023
CH31.01.2023
LI31.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/43]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SK19.10.2022
SM19.10.2022
LU11.01.2023
NO19.01.2023
GR20.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/38]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SK19.10.2022
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NO19.01.2023
GR20.01.2023
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PT20.02.2023
Former [2023/37]AL19.10.2022
AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SM19.10.2022
NO19.01.2023
GR20.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/35]AT19.10.2022
CZ19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RO19.10.2022
RS19.10.2022
SE19.10.2022
SM19.10.2022
NO19.01.2023
GR20.01.2023
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PT20.02.2023
Former [2023/34]AT19.10.2022
DK19.10.2022
EE19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RS19.10.2022
SE19.10.2022
SM19.10.2022
NO19.01.2023
GR20.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/33]AT19.10.2022
DK19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RS19.10.2022
SE19.10.2022
SM19.10.2022
NO19.01.2023
GR20.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/25]AT19.10.2022
FI19.10.2022
HR19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
RS19.10.2022
SE19.10.2022
NO19.01.2023
GR20.01.2023
IS19.02.2023
PT20.02.2023
Former [2023/23]AT19.10.2022
FI19.10.2022
LT19.10.2022
LV19.10.2022
NL19.10.2022
SE19.10.2022
NO19.01.2023
GR20.01.2023
PT20.02.2023
Former [2023/22]AT19.10.2022
FI19.10.2022
LT19.10.2022
NL19.10.2022
SE19.10.2022
NO19.01.2023
PT20.02.2023
Former [2023/20]LT19.10.2022
NL19.10.2022
NO19.01.2023
Former [2023/17]NL19.10.2022
Documents cited:Search[XAI] WO2011054827  (BAYER SCHERING PHARMA AG et al.) [X] 1,3-5 * see decomplexation (with oxalic acid) according to claims 4 to 6 *[A] 2 [I] 1,3-5
 [XAI] CN106187930  (HARVEST (HUNAN) PHARMACEUTICAL TECH CO LTD et al.) [X] 1,3-5 * see examples and claim 1 *[A] 2 [I] 1,3-5
 [A] US2011028431  (ZERBE HORST G et al.) [A] 1-5 * see the decomplexing agents in paragraph [0040] *
International search[XY] CN106187930  (HARVEST (HUNAN) PHARMACEUTICAL TECH CO LTD et al.) [X] 1, 3-5 * See claims 1-10. *[Y] 2
 [Y] US2011028431  (ZERBE HORST G et al.) [Y] 2 * See paragraph [0040]. *
 [A] KR20120093388  (BAYER PHARMA AG et al.) [A] 1-5 * See paragraphs [0015]-[0021], [0072], [0072]. *
 [A] KR20130089229  (BAYER IP GMBH et al.) [A] 1-5 * See claims 1-3. *
 [A] KR20160032872  (ST PHARM CO LTD et al.) [A] 1-5 * See claims 1. 14. 15. *
by applicantKR101057939
 KR101693400
   INORG. CHEM., vol. 36, 1997, pages 6086 - 6093
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.