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Extract from the Register of European Patents

EP About this file: EP3998394

EP3998394 - METHOD FOR COAL MINING WITHOUT RESERVING COAL PILLAR AND TUNNELING ROADWAY IN WHOLE MINING AREA [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.03.2024
Database last updated on 14.03.2026
FormerThe patent has been granted
Status updated on  07.04.2023
FormerGrant of patent is intended
Status updated on  29.11.2022
FormerRequest for examination was made
Status updated on  15.04.2022
FormerThe international publication has been made
Status updated on  18.01.2021
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
Beijing Zhongkuang Innovation Alliance Energy Environment Science Academy
Room 1702, Zhongguancun Energy and Safety
Technology Park, No. 3 Building
No. 16 Qinghua East Road, Haidian District
Beijing 100080 / CN
[2022/19]
Inventor(s)01 / HE, Manchao
Room 201, A2 Baoyuan Building
No. 16 Qinghua East Road
Haidian District
Beijing 100083 / CN
02 / GAO, Yubing
Room 201, A2 Baoyuan Building
No. 16 Qinghua East Road
Haidian District
Beijing 100083 / CN
03 / FU, Qiang
Room 201, A2 Baoyuan Building
No. 16 Qinghua East Road
Haidian District
Beijing 100083 / CN
04 / WANG, Yajun
Room 201, A2 Baoyuan Building
No. 16 Qinghua East Road
Haidian District
Beijing 100083 / CN
 [2022/19]
Representative(s)Samson & Partner Patentanwälte mbB
Widenmayerstraße 6
80538 München / DE
[2022/19]
Application number, filing date19936877.022.07.2019
[2022/20]
WO2019CN97066
Priority number, dateCN20191061605609.07.2019         Original published format: CN201910616056
[2022/19]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021003772
Date:14.01.2021
Language:ZH
[2021/02]
Type: A1 Application with search report 
No.:EP3998394
Date:18.05.2022
Language:EN
[2022/20]
Type: B1 Patent specification 
No.:EP3998394
Date:10.05.2023
Language:EN
[2023/19]
Search report(s)International search report - published on:CN14.01.2021
(Supplementary) European search report - dispatched on:EP09.08.2022
ClassificationIPC:E21C41/18, E21D9/14
[2022/19]
CPC:
E21C41/18 (EP,CN,US); E21D9/14 (EP,CN,US)
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 [2022/19]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUM KOHLENABBAU OHNE RESERVIERUNG EINES KOHLENPFEILERS UND EINES ROLLBAHNTUNNELS IM GESAMTEN MINENBEREICH[2022/19]
English:METHOD FOR COAL MINING WITHOUT RESERVING COAL PILLAR AND TUNNELING ROADWAY IN WHOLE MINING AREA[2022/19]
French:PROCÉDÉ D'EXTRACTION DE CHARBON SANS RÉSERVER DE PILIER DE CHARBON ET DE VOIE DE FORAGE DE TUNNEL DANS L'ENSEMBLE D'UNE ZONE D'EXPLOITATION MINIÈRE[2022/19]
Entry into regional phase28.01.2022Translation filed 
28.01.2022National basic fee paid 
28.01.2022Search fee paid 
28.01.2022Designation fee(s) paid 
28.01.2022Examination fee paid 
Examination procedure28.01.2022Amendment by applicant (claims and/or description)
28.01.2022Examination requested  [2022/20]
09.08.2022Date on which the examining division has become responsible
30.11.2022Communication of intention to grant the patent
28.03.2023Fee for grant paid
28.03.2023Fee for publishing/printing paid
28.03.2023Receipt of the translation of the claim(s)
Opposition(s)13.02.2024No opposition filed within time limit [2024/16]
Fees paidRenewal fee
28.01.2022Renewal fee patent year 03
25.07.2022Renewal 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  TooltipCY22.07.2019
HU22.07.2019
AT10.05.2023
BG10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
TR10.05.2023
IE22.07.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
[2026/05]
Former [2025/39]CY22.07.2019
HU22.07.2019
AT10.05.2023
BG10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
IE22.07.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2025/36]CY22.07.2019
AT10.05.2023
BG10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
IE22.07.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/51]AT10.05.2023
BG10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
IE22.07.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/33]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
IE22.07.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/26]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/25]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
LU22.07.2023
CH31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/18]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
LU22.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/14]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/10]AT10.05.2023
CZ10.05.2023
DK10.05.2023
EE10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/08]AT10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/03]AT10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/01]AT10.05.2023
ES10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/51]AT10.05.2023
ES10.05.2023
HR10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/50]AT10.05.2023
ES10.05.2023
NL10.05.2023
PL10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/48]AT10.05.2023
ES10.05.2023
NL10.05.2023
SE10.05.2023
NO10.08.2023
PT11.09.2023
Former [2023/46]ES10.05.2023
PT11.09.2023
Documents cited:Search[A] CN105240013  (HE MANCHAO et al.) [A] 1-8 * the whole document *
 [A] WO2019109602  (UNIV CHINA MINING et al.) [A] 1-8 * the whole document *
 [A] GB2109035  (TATABANYAI SZENBANYAK et al.) [A] 1-8 * the whole document *
International search[A] CN105240013  (HE MANCHAO et al.) [A] 1-10 * description, paragraphs [0020]-[0031], figures 1, 2 *
 [A] CN106121646  (CHINA COAL XI'AN DESIGN ENG CO LTD et al.) [A] 1-10 * entire document *
 [A] CN105089668  (LIANG JIE et al.) [A] 1-10 * entire document *
 [A] EP2801697  (HE MANCHAO et al.) [A] 1-10 * entire document *
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.