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Extract from the Register of European Patents

EP About this file: EP3991900

EP3991900 - PULSE ARC WELDING POWER SUPPLY [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  24.05.2024
Database last updated on 26.06.2024
FormerThe patent has been granted
Status updated on  16.06.2023
FormerGrant of patent is intended
Status updated on  11.04.2023
FormerRequest for examination was made
Status updated on  21.10.2022
FormerThe application has been published
Status updated on  02.04.2022
Most recent event   Tooltip20.06.2024Lapse of the patent in a contracting state
New state(s): LU		published on 24.07.2024 [2024/30]
Applicant(s)For all designated states
DAIHEN Corporation
2-1-11, Tagawa
Yodogawa-ku
Osaka-shi
Osaka 532-8512 / JP
[2022/18]
Inventor(s)01 / TAKADA, Kento
Osaka, 532-8512 / JP
02 / ISA, Taisaku
Osaka, 532-8512 / JP
03 / ERA, Tetsuo
Osaka, 532-8512 / JP
 [2022/18]
Representative(s)Boult Wade Tennant LLP
Salisbury Square House
8 Salisbury Square
London EC4Y 8AP / GB
[2022/18]
Application number, filing date21203462.319.10.2021
[2022/18]
Priority number, dateJP2020017637821.10.2020         Original published format: JP 2020176378
[2022/18]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3991900
Date:04.05.2022
Language:EN
[2022/18]
Type: B1 Patent specification 
No.:EP3991900
Date:19.07.2023
Language:EN
[2023/29]
Search report(s)(Supplementary) European search report - dispatched on:EP31.03.2022
ClassificationIPC:B23K9/073, B23K9/09, B23K9/095, B23K9/10, B23K9/173
[2022/18]
CPC:
B23K9/0732 (EP); B23K9/09 (CN); B23K9/091 (EP);
B23K9/0953 (EP); B23K9/1062 (EP); B23K9/133 (CN);
B23K9/1336 (CN); B23K9/173 (EP) (-)
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 [2022/47]
Former [2022/18]AL,  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 
TitleGerman:STROMVERSORGUNG FÜR LICHTBOGENSCHWEISSEN[2022/18]
English:PULSE ARC WELDING POWER SUPPLY[2022/18]
French:ALIMENTATION ÉLECTRIQUE POUR SOUDAGE À L'ARC À IMPULSION[2022/18]
Examination procedure18.10.2022Amendment by applicant (claims and/or description)
18.10.2022Examination requested  [2022/47]
18.10.2022Date on which the examining division has become responsible
12.04.2023Communication of intention to grant the patent
12.06.2023Fee for grant paid
12.06.2023Fee for publishing/printing paid
12.06.2023Receipt of the translation of the claim(s)
Opposition(s)22.04.2024No opposition filed within time limit [2024/26]
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  TooltipAT19.07.2023
CZ19.07.2023
DK19.07.2023
EE19.07.2023
ES19.07.2023
FI19.07.2023
HR19.07.2023
IT19.07.2023
LT19.07.2023
LV19.07.2023
MC19.07.2023
NL19.07.2023
PL19.07.2023
RO19.07.2023
RS19.07.2023
SE19.07.2023
SK19.07.2023
SM19.07.2023
LU19.10.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
[2024/30]
Former [2024/28]AT19.07.2023
CZ19.07.2023
DK19.07.2023
EE19.07.2023
ES19.07.2023
FI19.07.2023
HR19.07.2023
IT19.07.2023
LT19.07.2023
LV19.07.2023
MC19.07.2023
NL19.07.2023
PL19.07.2023
RO19.07.2023
RS19.07.2023
SE19.07.2023
SK19.07.2023
SM19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/27]AT19.07.2023
CZ19.07.2023
DK19.07.2023
EE19.07.2023
ES19.07.2023
FI19.07.2023
HR19.07.2023
IT19.07.2023
LT19.07.2023
LV19.07.2023
NL19.07.2023
PL19.07.2023
RO19.07.2023
RS19.07.2023
SE19.07.2023
SK19.07.2023
SM19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/23]AT19.07.2023
CZ19.07.2023
DK19.07.2023
EE19.07.2023
ES19.07.2023
FI19.07.2023
HR19.07.2023
LT19.07.2023
LV19.07.2023
NL19.07.2023
PL19.07.2023
RO19.07.2023
RS19.07.2023
SE19.07.2023
SK19.07.2023
SM19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/22]AT19.07.2023
CZ19.07.2023
DK19.07.2023
FI19.07.2023
HR19.07.2023
LT19.07.2023
LV19.07.2023
NL19.07.2023
PL19.07.2023
RO19.07.2023
RS19.07.2023
SE19.07.2023
SM19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/20]AT19.07.2023
FI19.07.2023
HR19.07.2023
LT19.07.2023
LV19.07.2023
NL19.07.2023
PL19.07.2023
RS19.07.2023
SE19.07.2023
SM19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/10]AT19.07.2023
FI19.07.2023
HR19.07.2023
LT19.07.2023
LV19.07.2023
NL19.07.2023
PL19.07.2023
RS19.07.2023
SE19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
PT20.11.2023
Former [2024/09]AT19.07.2023
FI19.07.2023
LT19.07.2023
NL19.07.2023
SE19.07.2023
NO19.10.2023
GR20.10.2023
IS19.11.2023
Former [2024/08]LT19.07.2023
NL19.07.2023
NO19.10.2023
GR20.10.2023
Former [2024/05]NL19.07.2023
Documents cited:Search[A]JP2973714B  (TOYOTA MOTOR CORP) [A] 1-5 * see also inofficial translation;; figures 2,7 *;
 [AD]JP2014226677  (DAIHEN CORP) [AD] 1-5 * see also inofficial translation; paragraphs [0007] , [0 14] , [0 16] , [0 19] , [0 22]; figures 1,2 *;
 [A]CN109262113B  (PANASONIC WELDING SYSTEMS TANGSHAN CO LTD) [A] 1-5* see also inofficial translation;; figures 1,2 *
by applicantJP2014226677
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.