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Extract from the Register of European Patents

EP About this file: EP3406865

EP3406865 - SINTERED VALVE SEAT [Right-click to bookmark this link]
StatusOpposition rejected
Status updated on  07.02.2025
Database last updated on 14.03.2026
FormerThe patent has been granted
Status updated on  27.12.2019
FormerGrant of patent is intended
Status updated on  15.09.2019
FormerRequest for examination was made
Status updated on  26.10.2018
FormerThe international publication has been made
Status updated on  06.10.2018
Formerunknown
Status updated on  22.05.2018
Most recent event   Tooltip07.02.2025Opposition rejectedpublished on 12.03.2025  [2025/11]
Applicant(s)For all designated states
Kabushiki Kaisha Riken
8-1, Sanbancho
Chiyoda-ku, Tokyo 102-8202 / JP
[2018/48]
Inventor(s)01 / HASHIMOTO, Kimiaki
c/o Kumagaya Plant
Kabushiki Kaisha Riken
14-1, Suehiro 4-chome
Kumagaya-shi, Saitama 360-8522 / JP
 [2018/50]
Former [2018/48]01 / HASHIMOTO Kimiaki
c/o Kumagaya Plant
Kabushiki Kaisha Riken
14-1 Suehiro 4-chome
Kumagaya-shi Saitama 360-8522 / JP
Representative(s)SSM Sandmair
Patentanwälte Rechtsanwalt
Partnerschaft mbB
Joseph-Wild-Straße 20
81829 München / DE
[2020/05]
Former [2018/48]Schwabe - Sandmair - Marx
Patentanwälte Rechtsanwalt
Partnerschaft mbB
Joseph-Wild-Straße 20
81829 München / DE
Application number, filing date17870625.501.12.2017
[2018/48]
WO2017JP43303
Priority number, dateJP2017006308828.03.2017         Original published format: JP 2017063088
[2018/48]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2018179590
Date:04.10.2018
Language:JA
[2018/40]
Type: A1 Application with search report 
No.:EP3406865
Date:28.11.2018
Language:EN
[2018/48]
Type: B1 Patent specification 
No.:EP3406865
Date:29.01.2020
Language:EN
[2020/05]
Search report(s)International search report - published on:JP04.10.2018
(Supplementary) European search report - dispatched on:EP26.06.2019
ClassificationIPC:F01L3/02, B22F5/10, B22F7/00, B22F7/02, C22C1/05, C22C9/00, C22C9/02, C22C19/07, C22C27/04, C22C38/00, C22C38/12, C22C38/22, C22C38/24, C22C38/36
[2018/48]
CPC:
F01L3/02 (EP,CN,US); B22F5/008 (CN); B22F1/00 (EP,CN,US);
B22F1/10 (EP,CN,US); B22F1/105 (EP,CN,US); B22F3/10 (CN);
B22F5/106 (US); B22F7/02 (CN); C22C19/07 (US);
C22C27/04 (US); C22C38/02 (US); C22C38/04 (US);
C22C38/22 (US); C22C38/24 (US); C22C38/28 (US);
B22F2301/10 (US); B22F2301/15 (US); B22F2301/20 (US);
B22F2301/35 (US); F01L2301/00 (EP,US); F01L2303/00 (EP,US);
F01L2303/01 (EP); F02F1/24 (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 [2018/48]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:GESINTERTER VENTILSITZ[2018/48]
English:SINTERED VALVE SEAT[2018/48]
French:SIÈGE DE SOUPAPE FRITTÉ[2018/48]
Entry into regional phase22.05.2018Translation filed 
22.05.2018National basic fee paid 
22.05.2018Search fee paid 
22.05.2018Designation fee(s) paid 
22.05.2018Examination fee paid 
Examination proceduredeletedDate on which the examining division has become responsible
22.05.2018Examination requested  [2018/48]
16.09.2019Communication of intention to grant the patent
25.11.2019Fee for grant paid
25.11.2019Fee for publishing/printing paid
25.11.2019Receipt of the translation of the claim(s)
Opposition(s)Opponent(s)01  28.10.2020   
MAHLE International GmbH
Pragstrasse 26-46
70376 Stuttgart / DE
Opponent's representative
BRP Renaud & Partner mbB Rechtsanwälte Patentanwälte Steuerberater
Königstraße 28
70173 Stuttgart / DE
 [2020/49]
12.11.2020Invitation to proprietor to file observations on the notice of opposition
12.03.2021Reply of patent proprietor to notice(s) of opposition
08.03.2022Date of oral proceedings
23.06.2022Despatch of minutes of oral proceedings
23.06.2022Date of despatch of rejection of opposition
19.11.2024Legal effect of rejection of opposition [2025/11]
Appeal following opposition10.08.2022Appeal received No.  T1934/22
10.08.2022Payment of appeal fee
26.10.2022Statement of grounds filed
19.11.2024Result of appeal procedure: appeal of the opponent was rejected
30.01.2025Despatch of the decision of the Board of Appeal
19.11.2024Date of oral proceedings
Fees paidRenewal fee
13.12.2019Renewal fee patent year 03
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  TooltipHU01.12.2017
AL29.01.2020
AT29.01.2020
CY29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
MK29.01.2020
MT29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
TR29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
BE31.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
GB01.12.2021
[2022/47]
Former [2022/33]HU01.12.2017
AL29.01.2020
AT29.01.2020
CY29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
MK29.01.2020
MT29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
TR29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
BE31.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
Former [2022/31]HU01.12.2017
AL29.01.2020
AT29.01.2020
CY29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
MK29.01.2020
MT29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
TR29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
Former [2022/30]HU01.12.2017
AL29.01.2020
AT29.01.2020
CY29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
MT29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
TR29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
Former [2022/27]HU01.12.2017
AT29.01.2020
CY29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
MT29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
TR29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
Former [2021/52]AT29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
CH31.12.2020
FR31.12.2020
LI31.12.2020
Former [2021/48]AT29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
FR31.12.2020
Former [2021/46]AT29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
IE01.12.2020
LU01.12.2020
Former [2021/40]AT29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
MC29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2021/10]AT29.01.2020
CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
IT29.01.2020
LT29.01.2020
LV29.01.2020
NL29.01.2020
PL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SI29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/50]CZ29.01.2020
DK29.01.2020
EE29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
LT29.01.2020
LV29.01.2020
NL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/49]CZ29.01.2020
DK29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
LT29.01.2020
LV29.01.2020
NL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SK29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/48]DK29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
LT29.01.2020
LV29.01.2020
NL29.01.2020
RO29.01.2020
RS29.01.2020
SE29.01.2020
SM29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/47]DK29.01.2020
ES29.01.2020
FI29.01.2020
HR29.01.2020
LT29.01.2020
LV29.01.2020
NL29.01.2020
RS29.01.2020
SE29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/45]FI29.01.2020
HR29.01.2020
LV29.01.2020
NL29.01.2020
RS29.01.2020
SE29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/40]FI29.01.2020
HR29.01.2020
LV29.01.2020
RS29.01.2020
SE29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
IS29.05.2020
PT21.06.2020
Former [2020/39]FI29.01.2020
HR29.01.2020
LV29.01.2020
RS29.01.2020
SE29.01.2020
BG29.04.2020
NO29.04.2020
GR30.04.2020
PT21.06.2020
Former [2020/38]FI29.01.2020
HR29.01.2020
LV29.01.2020
RS29.01.2020
SE29.01.2020
NO29.04.2020
GR30.04.2020
PT21.06.2020
Former [2020/37]FI29.01.2020
HR29.01.2020
LV29.01.2020
RS29.01.2020
SE29.01.2020
NO29.04.2020
PT21.06.2020
Former [2020/35]FI29.01.2020
NO29.04.2020
Documents cited:Search[A] GB2320741  (NIPPON PISTON RING CO LTD et al.)
 [A] JP2017025921  (RIKEN KK et al.)
 [A] JP2015014262  (RIKEN KK et al.)
 [A] EP2540852  (RIKEN KK et al.)
 [A] DE102015213706  (MAHLE INT GMBH et al.)
 [A] EP0505172  (TOYOTA MOTOR CO LTD et al.)
International search[A] JPH0233848  (TOYOTA JIDOSHA KK et al.)
 [A] JP2015014262  (RIKEN KK et al.)
 [A] JP2005256146  (TOYOTA MOTOR CORP et al.)
 [A] JP2004232088  (NIPPON PISTON RING CO LTD et al.)
 [A] JPS5671906  
by applicantJPH07119421
 JPH0360895
 JPH10184324
 JP3786267
 JP4272706
OppositionDE19606270
 DE102006042950
 DE102012013226
 DE102016109539
 EP1882750
 EP3162475
 US5207821
   "Ventilsteuerung", WIKIPEDIA, XP055748689, Retrieved from the Internet [retrieved on 20101016]
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.