Extract from the Register of European Patents

EP About this file: EP4183435

EP4183435 - VENTILATOR [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  12.09.2025
Database last updated on 28.03.2026
FormerGrant of patent is intended
Status updated on  10.07.2025
FormerRequest for examination was made
Status updated on  21.04.2023
FormerThe international publication has been made
Status updated on  28.01.2022
Most recent event   Tooltip12.09.2025(Expected) grantpublished on 15.10.2025  [2025/42]
Applicant(s)For all designated states
Ishikita, Naoyuki
c/o Division of Medical Device Innovation
Department of Clinical Research
National Hospital Organization
Niigata National Hospital, 3-52 Akasakacho
Kashiwazaki-shi, Niigata 945-8585 / JP
[2023/21]
Inventor(s)01 / see applicant
...
 [2023/21]
Representative(s)Schmid, Wolfgang
Lorenz & Kollegen
Patentanwälte Partnerschaftsgesellschaft mbB
Alte Ulmer Strasse 2
89522 Heidenheim / DE
[2023/21]
Application number, filing date21845191.214.09.2021
[2023/21]
WO2021JP33702
Priority number, dateJP2020012333618.07.2020         Original published format: JP 2020123336
[2023/21]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022019342
Date:27.01.2022
Language:JA
[2022/04]
Type: A1 Application with search report 
No.:EP4183435
Date:24.05.2023
Language:EN
[2023/21]
Type: B1 Patent specification 
No.:EP4183435
Date:15.10.2025
Language:EN
[2025/42]
Search report(s)International search report - published on:JP27.01.2022
(Supplementary) European search report - dispatched on:EP02.07.2024
ClassificationIPC:A61M16/00, A61M16/20
[2023/21]
CPC:
A61M16/0816 (EP,US); A61M16/209 (EP,US); A61M16/01 (EP,US);
A61M16/1045 (EP,US); A61M16/208 (EP,US); A61M16/0063 (EP);
A61M16/1005 (EP); A61M2016/0039 (EP); A61M2205/078 (EP);
A61M2205/276 (EP); A61M2205/3344 (EP,US); A61M2207/00 (EP);
A61M2209/04 (EP); A61M2209/088 (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 [2023/21]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:LÜFTER[2023/21]
English:VENTILATOR[2023/21]
French:VENTILATEUR[2023/21]
Entry into regional phase12.02.2023Translation filed 
12.02.2023National basic fee paid 
12.02.2023Search fee paid 
12.02.2023Designation fee(s) paid 
12.02.2023Examination fee paid 
Examination procedure12.02.2023Examination requested  [2023/21]
16.01.2025Amendment by applicant (claims and/or description)
16.01.2025Date on which the examining division has become responsible
10.07.2025Communication of intention to grant the patent
19.08.2025Fee for grant paid
19.08.2025Fee for publishing/printing paid
19.08.2025Receipt of the translation of the claim(s)
Fees paidRenewal fee
25.09.2023Renewal fee patent year 03
23.09.2024Renewal fee patent year 04
04.09.2025Renewal fee patent year 05
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Documents cited:Search[XIY] US2010199991  (KOLEDIN MICHAEL J et al.) [X] 1-4,7-9,11-12,15-17 * figures 1,3,4,7,8,10-13 * * paragraph [0004] - paragraph [0006] * * paragraph [0042] - paragraph [0054] *[I] 5-6,10,18 [Y] 13-14
 [YA] US2016346500  (HOWE JR GEORGE E et al.) [Y] 13-14 * figures 7-12 * * paragraph [0048] - paragraph [0051] *[A] 12
 [A] WO2012165541  (ISHIKITA NAOYUKI et al.) [A] 1-18 * the whole document *
 [A] JP2013017766  (ULVAC CORP et al.) [A] 1-18 * the whole document *
International search[Y] JP2013017766  (ULVAC CORP et al.) [Y] 1-18 * paragraphs [0017]-[0040], fig. 1, 4 *
 [Y] JP2010522007   [Y] 1-18 * paragraph [0022], fig. 1-2 *
 [Y] WO2012165541  (ISHIKITA NAOYUKI et al.) [Y] 2-18 * paragraphs [0016], [0018] *
 [Y] WO2017115866  (ISHIKITA NAOYUKI et al.) [Y] 9-18 * paragraph [0067], fig. 5 *
 [Y] JP2003019201  (KAWASAKI SAFETY SERVICE IND LTD et al.) [Y] 12-18 * paragraphs [0023], [0048], fig. 1 *
by applicantWO2017115866
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