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EP4183435

European procedure

Unitary Patent

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Extract from the Register for Unitary Patent Protection

UP About this file: EP4183435 C0

EP4183435 - VENTILATOR [Right-click to bookmark this link]
Status	Unitary effect registered Database last updated on 28.03.2026
Former	Request for unitary effect filed Status updated on 07.11.2025
Most recent event Tooltip	14.11.2025	Decision on the request for unitary effect	published on 17.12.2025 [2025/51]
Proprietor(s)	For all participating member 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
	[2025/51]
Inventor(s)	01 / see applicant ...
	[2023/21]
Representative(s)	Schmid, Wolfgang Lorenz & Kollegen Patentanwälte Partnerschaftsgesellschaft mbB Alte Ulmer Strasse 2 89522 Heidenheim / DE
	[2025/51]
Application number, filing date	21845191.2	14.09.2021
	[2023/21]
	WO2021JP33702
Procedural language	EN
(Principal) place of business Tooltip on the date of filing	Principal place of businessTooltip
Unitary Patent Protection	06.11.2025	Date of request for unitary effect [2025/50]
	12.11.2025	Decision on the request for unitary effect: Positive [2025/51]
	12.11.2025	Date of registration [2025/51]
	15.10.2025	Date of legal effect [2025/51]
Member States covered by Unitary Tooltip Patent Protection	12.11.2025	AT, BE, BG, DE, DK, EE, FI, FR, IT, LT, LU, LV, MT, NL, PT, RO, SE, SI [2025/51]
Publication	Type:	B1 Patent specification
	No.:	EP4183435
	Date:	15.10.2025
	Language:	EN
	[2025/42]

The European Patent Register provides the information on unitary patent protection required under R. 16(1) UPR. "Status" and "Most recent event" are not entries required under R. 16(1) UPR and should therefore be regarded as additional information only.

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. Please refer to the relevant national patent authority for SPC data.