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EP3937786

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Extract from the Register of European Patents

EP About this file: EP3937786

EP3937786 - METHODS FOR THERMOACOUSTIC TRANSDUCER OPTIMIZATION [Right-click to bookmark this link]
Former [2022/03]	SYSTEMS AND METHODS FOR THERMOACOUSTIC TRANSDUCER OPTIMIZATION
	[2025/29]
Status	The application is deemed to be withdrawn Status updated on 27.02.2026 Database last updated on 11.04.2026
Former	Grant of patent is intended Status updated on 01.07.2025
Former	Examination is in progress Status updated on 20.10.2023
Former	Request for examination was made Status updated on 17.12.2021
Former	The international publication has been made Status updated on 28.08.2020
Most recent event Tooltip	27.02.2026	Application deemed to be withdrawn	published on 01.04.2026 [2026/14]
Applicant(s)	For all designated states ENDRA Life Sciences Inc. 3600 Green Court Suite 350 Ann Arbor, MI 48105 / US
	[2022/03]
Inventor(s)	01 / DOUTHAT, Dean Zahn 3600 Green Court, Suite 350 Ann Arbor, Michigan 48105 / US
	02 / CHO, Jang Hwan 3600 Green Court, Suite 350 Ann Arbor, Michigan 48105 / US
	[N/P]
Former [2022/03]	01 / DOUTHAT, Dean Zahn Ann Arbor, Michigan 48105 / US
	02 / CHO, Jang Hwan Ann Arbor, Michigan 48105 / US
Representative(s)	Vukmir, Mladen Vukmir and Associates Gramaca 2L 10000 Zagreb / HR
	[N/P]
Former [2022/03]	Vukmir, Mladen Gramaca 2L 10000 Zagreb / HR
Application number, filing date	20758761.9	19.02.2020
	[2022/03]
	WO2020US18822
Priority number, date	US201916279608	19.02.2019 Original published format: US201916279608
	[2022/03]
Filing language	EN
Procedural language	EN
Publication	Type:	A1 Application with search report
	No.:	WO2020172271
	Date:	27.08.2020
	Language:	EN
	[2020/35]
	Type:	A1 Application with search report
	No.:	EP3937786
	Date:	19.01.2022
	Language:	EN
	The application published by WIPO in one of the EPO official languages on 27.08.2020 takes the place of the publication of the European patent application.
	[2022/03]
Search report(s)	International search report - published on:	US	27.08.2020
	(Supplementary) European search report - dispatched on:	EP	16.12.2022
Classification	IPC:	A61B8/00, A61B5/00	[2023/03]
	CPC:	A61B5/0095 (EP,US); A61B5/0507 (EP); A61B5/7203 (EP); A61B5/7253 (EP); A61B8/4477 (EP); A61B8/4483 (US); (+) A61B8/5261 (EP); G01S15/8915 (EP); G01S15/899 (EP); A61B2560/0223 (EP); A61B2562/0204 (EP); A61B2576/00 (EP,US); A61B8/4416 (US); G01S15/8906 (US) (-)
	Former IPC [2022/03]	A61B8/00
Designated contracting states	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 [2022/03]
Title	German:	VERFAHREN ZUR THERMOAKUSTISCHEN WANDLEROPTIMIERUNG	[2025/29]
	English:	METHODS FOR THERMOACOUSTIC TRANSDUCER OPTIMIZATION	[2025/29]
	French:	PROCÉDÉS D'OPTIMISATION DE TRANSDUCTEUR THERMOACOUSTIQUE	[2025/29]
	Former [2022/03]	SYSTEME UND VERFAHREN ZUR THERMOAKUSTISCHEN WANDLEROPTIMIERUNG
	Former [2022/03]	SYSTEMS AND METHODS FOR THERMOACOUSTIC TRANSDUCER OPTIMIZATION
	Former [2022/03]	SYSTÈMES ET PROCÉDÉS D'OPTIMISATION DE TRANSDUCTEUR THERMOACOUSTIQUE
Entry into regional phase	17.11.2021	National basic fee paid
	17.11.2021	Search fee paid
	17.11.2021	Designation fee(s) paid
	17.11.2021	Examination fee paid
Examination procedure	deleted	Deletion: Application deemed to be withdrawn, date of legal effect [2022/03]
	17.11.2021	Examination requested [2022/03]
	10.07.2023	Amendment by applicant (claims and/or description)
	20.10.2023	Despatch of a communication from the examining division (Time limit: M06)
	16.04.2024	Reply to a communication from the examining division
	02.07.2025	Communication of intention to grant the patent
	04.11.2025	Application deemed to be withdrawn, date of legal effect [2026/14]
	21.11.2025	Despatch of communication that the application is deemed to be withdrawn, reason: fee for grant / fee for printing not paid in time [2026/14]
Divisional application(s)	EP24166859.9 / EP4374778
Request for further processing for:	17.11.2021	Request for further processing filed
	17.11.2021	Full payment received (date of receipt of payment) Request granted
	09.12.2021	Decision despatched
	The application is deemed to be withdrawn due to non-payment of designation fees MK, DE, CY, TR, SM, SK, SI, SE, RS, RO, PT, PL, NO, NL, MT, MC, LV, LU, LT, IT, IS, IE, HU, HR, GR, GB, FR, FI, ES, EE, DK, CZ, CH, BG, BE, AT, AL
	17.11.2021	Request for further processing filed
	17.11.2021	Full payment received (date of receipt of payment) Request granted
	09.12.2021	Decision despatched
	The application is deemed to be withdrawn due to non-payment of the search fee
	17.11.2021	Request for further processing filed
	17.11.2021	Full payment received (date of receipt of payment) Request granted
	09.12.2021	Decision despatched
	The application is deemed to be withdrawn due to non-payment of the filing fee
	17.11.2021	Request for further processing filed
	17.11.2021	Full payment received (date of receipt of payment) Request granted
	09.12.2021	Decision despatched
	The application is deemed to be withdrawn due to non-payment of the examination fee
	17.11.2021	Request for further processing filed
	17.11.2021	Full payment received (date of receipt of payment) Request granted
	09.12.2021	Decision despatched
Fees paid	Renewal fee
	17.11.2021	Renewal fee patent year 03
	16.02.2023	Renewal fee patent year 04
	12.12.2023	Renewal fee patent year 05
	27.01.2025	Renewal fee patent year 06
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	Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Documents cited:	Search	[Y] US2018323571 (BROWN ROBERT B et al.) [Y] 1-7 * figure 5 * * paragraph [0065] - paragraph [0070] * * paragraph [0093] * * paragraph [0130] - paragraph [0137] *
		[Y] US2013116538 (HERZOG DONALD G et al.) [Y] 1-7 * figures 1-3, 7, 25A-25C * * paragraph [0043] - paragraph [0046] * * paragraph [0054] - paragraph [0070] * * paragraph [0079] - paragraph [0083] * * paragraph [0100] - paragraph [0102] * * paragraph [0258] * * paragraph [0293] * * paragraph [0477] *
	International search	[A] US6216025 (KRUGER ROBERT A et al.) [A] 1-27 * Fig 1, 11A, 11B, 12A, abstract, col 3, In 41-45, col 4, In 27-42, col 6, In 6-11, col 12, In 52-67, col 13, In 30-41 *
		[A] WO2018236748 (UNIV WASHINGTON et al.) [A] 1-27 * Fig 1-3, abstract, para [0002], [0034]-[0045] *
		[A] US2010082506 (AVINASH GOPAL B et al.) [A] 1-27 * Fig 12, abstract, para [0044] [0052], [0059] *

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