The patent has been granted The patent has been granted, Grant of patent is intended, Examination is in progress, Request for examination was made, The application has been published EP Register Verified

VERTICAL TAKE-OFF AND LANDING AIRCRAFT

Publication No. EP4368505

•

App No. EP24165177

•

Filed by Archer Aviation Inc.

•

Filed on 2021-05-18

•

Issued/Published on 2025-08-20

Official EPO Register

Publication No. EP4368505 A2

Application No. EP24165177 Filed: 2021-05-18

Grant Date 2025-07-16 Mention of grant

Active Oppositions 1 Active EPO Oppositions

Patent Abstract / Summary

A vertical take-off and landing aircraft includes a fuselage, at least one wing connected to the fuselage, a plurality of rotors connected to the at least one wing for providing lift for vertical take-off and landing of the aircraft and a plurality of proprotors connected to the at least one wing and tiltable between lift configurations for providing lift for vertical take-off and landing of the aircraft and propulsion configurations for providing forward thrust to the aircraft

IPC Classifications

B64C27/28

Priority Claims

US 202016878380 Date: 2020-05-19

Designated Contracting States (38 EPC 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

Parties & Representation

Applicants

Archer Aviation Inc.

190 W. Tasman Drive, San Jose, CA 95134

Archer Aviation, Inc.

190 W. Tasman Drive, San Jose, California 95134

Inventors (7)

BOWER, Geoffrey C.

San Jose, 95134

MUNIZ, Thomas P.

San Jose, 95134

ADCOCK, Brett

San Jose, 95134

GOLDSTEIN, Adam

San Jose, 95134

HUGHES, Calder Richmond

San Jose, 95134

HAZEN, Zachary Robert Timm

San Jose, 95134

KOSSAR, Chad Stuart

San Jose, 95134

Representatives / Agents

Carpmaels & Ransford LLP

One Southampton Row, London WC1B 5HA

EIP

Fairfax House, 15 Fulwood Place

Key Procedural Dates

Request-For-Examination 2024-09-23

Mention Of Grant Published 2025-07-16

First-Examination-Report-Despatched 2024-11-08

Legal Status & Event History

Official European Patent Office legal and procedural status changes recorded for this file.

49 Events Recorded

Date	Code	Event Description	Auth
2024-05-15	AC	DIVISIONAL APPLICATION: REFERENCE TO EARLIER APPLICATION	EP
2024-05-15	AK	DESIGNATED CONTRACTING STATES	EP
2024-04-12	PUAI	PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE	EP
2024-04-12	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-06-27	PUAL	SEARCH REPORT DESPATCHED	EP
2024-07-31	RIC1	INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT	EP
2024-07-31	AK	DESIGNATED CONTRACTING STATES	EP
2024-09-27	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-10-30	17P	REQUEST FOR EXAMINATION FILED	EP
2024-10-30	RBV	DESIGNATED CONTRACTING STATES (CORRECTED)	EP
2024-11-04	TPAC	OBSERVATIONS FILED BY THIRD PARTIES	EP
2024-11-08	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2024-12-11	17Q	FIRST EXAMINATION REPORT DESPATCHED	EP
2025-05-13	GRAP	DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT	EP
2025-05-13	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-06-11	INTG	INTENTION TO GRANT ANNOUNCED	EP
2025-06-07	GRAS	GRANT FEE PAID	EP
2025-06-13	GRAA	(EXPECTED) GRANT	EP
2025-06-13	STAA	INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT	EP
2025-07-04	GRAT	CORRECTION REQUESTED AFTER DECISION TO GRANT OR AFTER DECISION TO MAINTAIN PATENT IN AMENDED FORM	EP
2025-07-16	AC	DIVISIONAL APPLICATION: REFERENCE TO EARLIER APPLICATION	EP
2025-07-16	AK	DESIGNATED CONTRACTING STATES	EP
2025-07-16	REG	REFERENCE TO A NATIONAL CODE	EP
2025-07-31	REG	REFERENCE TO A NATIONAL CODE	EP
2025-08-06	RAP4	PARTY DATA CHANGED (PATENT OWNER DATA CHANGED OR RIGHTS OF A PATENT TRANSFERRED)	EP
2025-08-07	REG	REFERENCE TO A NATIONAL CODE	EP
2025-08-13	REG	REFERENCE TO A NATIONAL CODE	EP
2025-09-24	U01	REQUEST FOR UNITARY EFFECT FILED	EP
2025-09-24	U07	UNITARY EFFECT REGISTERED	EP
2025-11-24	REG	REFERENCE TO A NATIONAL CODE	EP
2026-01-08	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-15	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-16	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-01-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-06	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-09	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-10	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-17	PLBI	OPPOSITION FILED	EP
2026-04-23	REG	REFERENCE TO A NATIONAL CODE	EP
2026-04-23	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-04-28	PLAX	NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT	EP
2026-04-29	U20	RENEWAL FEE FOR THE EUROPEAN PATENT WITH UNITARY EFFECT PAID	EP
2026-04-28	PG25	LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-05-20	26	OPPOSITION FILED	EP
2026-06-01	REG	REFERENCE TO A NATIONAL CODE	EP
2026-07-08	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-14	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-07-16	PGFP	ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO]	EP
2026-08-29	PLBB	REPLY OF PATENT PROPRIETOR TO NOTICE(S) OF OPPOSITION RECEIVED	EP

Patent & Non-Patent Citations

Cited documents and prior art referenced in search and examination reports.

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- KIM SUNG JOON ET AL: "Structural Sizing for Optionally Piloted PAV Preliminary Design", JOURNAL OF THE KOREAN SOCIETY FOR AVIATION AND AERONAUTICS, vol. 28, no. 1, 1 March 2020 (2020-03-01), pages 83 - 89, XP093218601, ISSN: 1225-9705, [retrieved on 20241028], DOI: 10.12985/ksaa.2020.28.1.083

Worldwide Patent Family

Related applications and patents in the same INPADOC worldwide family.

52 Family Members

Country	Publication Number	Kind	Publication Date	Action
EP	EP4368505A2	A2	2024-05-15	Espacenet
EP	EP4368505A3	A3	2024-07-31	Espacenet
EP	EP4368505B1	B1	2025-07-16	Espacenet
EP	EP4368505C0	C0	2025-07-16	Espacenet
EP	EP4368505B8	B8	2025-08-20	Espacenet
AU	AU2021276318A1	A1	2022-12-08	Espacenet
AU	AU2021276318B2	B2	2025-04-10	Espacenet
AU	AU2025202044A1	A1	2025-04-10	Espacenet
AU	AU2025202044A2	A2	2025-06-26	Espacenet
AU	AU2025202044B2	B2	2026-07-09	Espacenet
AU	AU2025203931A1	A1	2025-06-19	Espacenet
CA	CA3183903A1	A1	2021-11-25	Espacenet
CN	CN115867486A	A	2023-03-28	Espacenet
CN	CN117902042A	A	2024-04-19	Espacenet
EP	EP4153483A1	A1	2023-03-29	Espacenet
EP	EP4153483B1	B1	2024-03-27	Espacenet
EP	EP4153483C0	C0	2024-03-27	Espacenet
EP	EP4368506A2	A2	2024-05-15	Espacenet
EP	EP4368506A3	A3	2024-07-31	Espacenet
EP	EP4368506B1	B1	2025-04-16	Espacenet
EP	EP4368506C0	C0	2025-04-16	Espacenet
EP	EP4368506B8	B8	2025-09-03	Espacenet
EP	EP4368507A2	A2	2024-05-15	Espacenet
EP	EP4368507A3	A3	2024-08-07	Espacenet
EP	EP4368507B1	B1	2026-07-08	Espacenet
EP	EP4368507C0	C0	2026-07-08	Espacenet
EP	EP4371877A2	A2	2024-05-22	Espacenet
EP	EP4371877A3	A3	2024-08-07	Espacenet
EP	EP4371877B1	B1	2025-07-16	Espacenet
EP	EP4371877C0	C0	2025-07-16	Espacenet
EP	EP4371877B8	B8	2025-08-20	Espacenet
EP	EP4796441A2	A2	2026-08-26	Espacenet
ES	ES2975121T3	T3	2024-07-03	Espacenet
ES	ES3026751T3	T3	2025-06-12	Espacenet
ES	ES3042965T3	T3	2025-11-24	Espacenet
ES	ES3043065T3	T3	2025-11-24	Espacenet
JP	JP2023526963A	A	2023-06-26	Espacenet
JP	JP7598948B2	B2	2024-12-12	Espacenet
JP	JP2025060613A	A	2025-04-10	Espacenet
PL	PL4153483T3	T3	2024-06-24	Espacenet
PL	PL4368505T3	T3	2025-11-03	Espacenet
PL	PL4368506T3	T3	2025-07-21	Espacenet
PL	PL4371877T3	T3	2025-11-03	Espacenet
US	US20250304250A1	A1	2025-10-02	Espacenet
US	US12600470B2	B2	2026-04-14	Espacenet
US	US20250304252A1	A1	2025-10-02	Espacenet
US	US12649572B2	B2	2026-06-09	Espacenet
US	US2021362849A1	A1	2021-11-25	Espacenet
US	US2023103521A1	A1	2023-04-06	Espacenet
US	US20250304251A1	A1	2025-10-02	Espacenet
US	US20260116537A1	A1	2026-04-30	Espacenet
WO	WO2021236576A1	A1	2021-11-25	Espacenet

Official File Inspection EPC Art. 128 Public Dossier

Complete European Patent Register Dossier (148 Total Documents)

The full inspection file for Application EP24165177 contains 148 total documents, including all notices of opposition, proprietor counter-statements, examination communications, third-party observations, and procedural forms. Below are all major recorded procedural filings and publication specifications.

Open 148-Doc Register Dossier

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Date: 2026-02-06 Procedure: Examination 0009250

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VERTICAL TAKE-OFF AND LANDING AIRCRAFT

Patent Abstract / Summary

IPC Classifications

Priority Claims

Designated Contracting States (38 EPC States)

Parties & Representation

Applicants

Inventors (7)

Representatives / Agents

Key Procedural Dates

Patent Oppositions

Vertical Aerospace Group Ltd

Legal Status & Event History

Patent & Non-Patent Citations

Cited Patent Documents

Non-Patent Scientific Literature (NPL)

Worldwide Patent Family

Complete European Patent Register Dossier (148 Total Documents)

Recorded Filings & Patent Specifications

Corrected European Patent Specification (B8)

Official European Patent Register Full Dossier

European Patent Specification - Granted Patent (B1)

European Search Report (A3)

European Patent Application without Search Report (A2)

New entry: Reply of patent proprietor to notice(s) of opposition

Lapse of the patent in a contracting state

Invitation to proprietor to file observations on the notice of opposition

New entry: Communication of a notice of opposition and request to file observations + time limit

Opposition filed

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Lapse of the patent in a contracting state

Correction of patent specification

New entry: Request filed for correction of the decision to grant

Change - applicant

Request for correction of the decision to grant filed

(Expected) grant

New entry: Receipt of the translation of the claim(s)

New entry: Payment of fee for grant

New entry: Payment of fee for publishing/printing

New entry: Renewal fee paid

Renewal fee payment

New entry: Communication of intention to grant a patent

Intention to grant the patent

New entry: Reply to examination report

New entry: Despatch of examination report + time limit

First examination report

Communication from the examining division

New entry: Observations by third parties

Observations by a third party

The date on which the examining division becomes responsible, has been established

Request for examination filed

Change - designated states

Amendment by applicant

Date on which the examining division has become responsible

Amendments

Change - classification

Publication of search report

New entry: Renewal fee paid

Renewal fee payment

Publication in section I.1 EP Bulletin

Change - representative

New entry: Renewal fee paid

Renewal fee payment

Language of the procedure

International searching authority