The patent has been granted
The patent has been granted, Grant of patent is intended, Request for examination was made, The international publication has been made, unknown
EP Register Verified
DRUG DELIVERY DEVICE
Publication No.
EP4037735
•
App No.
EP20792812
•
Filed by
Amgen Inc.
•
Filed on
2020-09-29
•
Issued/Published on
2025-09-03
Publication No.
EP4037735
A1
Application No.
EP20792812
Filed: 2020-09-29
Grant Date
2025-09-03
Mention of grant
Active Oppositions
2 Active
EPO Oppositions
Patent Abstract / Summary
Patent abstract is being processed or was not provided in English by the publishing office.
IPC Classifications
A61M5/28, A61M5/315, A61M5/20, A61M5/32
Priority Claims
US 201962908504P
Date: 2019-09-30
US 202062961048P
Date: 2020-01-14
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
Amgen Inc.
One Amgen Center Drive, Thousand Oaks CA 91320
USInventors (4)
FINKELSTEIN, Emil
C/o Amgen Inc., One Amgen Center Drive
USEILERTSEN, Lars
C/o Amgen Inc., One Amgen Center Drive
USSORENSEN, Michael
C/o Amgen Inc., One Amgen Center Drive
USMADURO NORBO, Tobias
C/o Amgen Inc., One Amgen Center Drive
USRepresentatives / Agents
Bijvank, Koen Mattijs Lodewiek
Brinkhof N.V., Grote Bickersstraat 74-78
NLJ A Kemp LLP
80 Turnmill Street, London EC1M 5QU
GBVossius & Partner Patentanwälte Rechtsanwälte mbB
Siebertstrasse 3, 81675 München
DEMaiwald GmbH
Elisenhof, Elisenstraße 3
DEKey Procedural Dates
Request-For-Examination
2022-03-16
First-Examination-Report-Despatched
2025-03-24
Patent Oppositions
Official opposition proceedings filed against European Patent EP4037735 under EPC Article 99.
#1
Opponent
Company
Arrowhouse GmbH
Siebertstr. 4, DE
Representative
Vossius & Partner Patentanwälte Rechtsanwälte mbB
Filing
Date
Opposition in Progress
2026-06-02
#2
Opponent
Company
Maiwald GmbH
Elisenhof, DE
Representative
Maiwald GmbH
Filing
Date
Opposition in Progress
2026-06-03
Legal Status & Event History
Official European Patent Office legal and procedural status changes recorded for this file.
| Date | Code | Event Description | Auth |
|---|---|---|---|
| 2021-04-10 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2020-10-27 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2022-07-08 | PUAI | PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE | EP |
| 2022-07-08 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2022-08-10 | 17P | REQUEST FOR EXAMINATION FILED | EP |
| 2022-08-10 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2022-12-23 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2023-01-04 | DAX | REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2023-01-04 | DAV | REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2023-06-21 | P01 | OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED | EP |
| 2023-09-25 | TPAC | OBSERVATIONS FILED BY THIRD PARTIES | EP |
| 2025-03-23 | GRAP | DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT | EP |
| 2025-03-23 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2025-04-23 | INTG | INTENTION TO GRANT ANNOUNCED | EP |
| 2025-08-01 | GRAA | (EXPECTED) GRANT | EP |
| 2025-07-25 | GRAS | GRANT FEE PAID | EP |
| 2025-08-01 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2025-09-03 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2025-09-18 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-09-15 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-10-09 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-10-08 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-10-16 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-10-01 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-10-20 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-10-21 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-10-27 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-11-05 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-11-17 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2020-09-29 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-11-21 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-12-02 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-11-25 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-12-05 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-12-11 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-01-13 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-14 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-14 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-01-15 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-16 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-19 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-20 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-22 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-23 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-26 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-27 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-28 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-30 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-02-06 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-03-18 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-04-24 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-02-28 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-05 | PLBI | OPPOSITION FILED | EP |
| 2026-06-11 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-12 | PLBI | OPPOSITION FILED | EP |
| 2026-06-15 | PLAX | NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT | EP |
| 2026-06-17 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-06-02 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-07-08 | 26 | OPPOSITION FILED | EP |
| 2026-07-15 | 26 | OPPOSITION FILED | EP |
| 2026-09-16 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-09-22 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-01 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-10-06 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-08 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-09 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-10 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-09 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-10-13 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-10-16 | PLBB | REPLY OF PATENT PROPRIETOR TO NOTICE(S) OF OPPOSITION RECEIVED | EP |
| 2026-10-14 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
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Cited documents and prior art referenced in search and examination reports.
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| BR | BR112022005814A2 | A2 | 2022-06-21 | Espacenet |
| BR | BR112022005827A2 | A2 | 2022-06-21 | Espacenet |
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| BR | BR112022005850A2 | A2 | 2022-06-21 | Espacenet |
| BR | BR112022005962A2 | A2 | 2022-06-28 | Espacenet |
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| CA | CA3152549A1 | A1 | 2021-04-08 | Espacenet |
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| CA | CA3155850A1 | A1 | 2021-04-08 | Espacenet |
| CN | CN114423475A | A | 2022-04-29 | Espacenet |
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| CN | CN114521145B | B | 2024-03-26 | Espacenet |
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| ES | ES3054808T3 | T3 | 2026-02-06 | Espacenet |
| ES | ES3075614T3 | T3 | 2026-08-06 | Espacenet |
| FI | FI4037733T3 | T3 | 2026-07-16 | Espacenet |
| FI | FI4037735T3 | T3 | 2025-11-25 | Espacenet |
| HR | HRP20251290T1 | T1 | 2025-12-05 | Espacenet |
| HR | HRP20260936T1 | T1 | 2026-09-25 | Espacenet |
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| IL | IL291004B2 | B2 | 2026-08-01 | Espacenet |
| IL | IL291005A | A | 2022-05-01 | Espacenet |
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| IL | IL291005B2 | B2 | 2026-08-01 | Espacenet |
| IL | IL291154A | A | 2022-05-01 | Espacenet |
| IL | IL291295A | A | 2022-05-01 | Espacenet |
| IL | IL291415A | A | 2022-05-01 | Espacenet |
| IL | IL326743A | A | 2026-04-01 | Espacenet |
| IL | IL326767A | A | 2026-04-01 | Espacenet |
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| WO | WO2021067990A1 | A1 | 2021-04-08 | Espacenet |
Official File Inspection
EPC Art. 128 Public Dossier
Complete European Patent Register Dossier (148 Total Documents)
The full inspection file for Application EP20792812 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.
Recorded Filings & Patent Specifications
Official publication specifications, opposition filings, proprietor replies, and procedural submissions.
European Patent Specification - Granted Patent (B1)
Publication Specification
Date: 2025-09-03
Procedure: Grant
EP4037735B1
Official European Patent Register Full Dossier
Publication Specification
Date: 2025-09-03
Procedure: All Proceedings (Examination & Opposition)
EP20792812
European Patent Application with Search Report (A1)
Publication Specification
Date: 2021-04-08
Procedure: Publication
EP4037735A1
New entry: Reply of patent proprietor to notice(s) of opposition
Dossier Filing
Date: 2026-10-16
Procedure: Opposition
EPIDOSNOBS3
Change - representative
Dossier Filing
Date: 2026-08-20
Procedure: Examination
EPIDOS FREP
Invitation to proprietor to file observations on the notice of opposition
Procedural Step
Date: 2026-06-16
Procedure: Opposition
OBSO
New entry: Communication of a notice of opposition and request to file observations + time limit
Dossier Filing
Date: 2026-06-15
Procedure: Opposition
EPIDOSNOBS2
Opposition filed
Dossier Filing
Date: 2026-06-12
Procedure: Opposition
0009260
Opposition filed
Dossier Filing
Date: 2026-06-05
Procedure: Opposition
0009260
(Expected) grant
Dossier Filing
Date: 2025-08-01
Procedure: Grant
0009210
New entry: Payment of fee for grant
Dossier Filing
Date: 2025-07-25
Procedure: Grant
EPIDOSNIGR3
New entry: Payment of fee for publishing/printing
Dossier Filing
Date: 2025-07-25
Procedure: Examination
EPIDOSNIGR5
New entry: Receipt of the translation of the claim(s)
Dossier Filing
Date: 2025-07-25
Procedure: Examination
EPIDOSNIGR7
Change - divisional application(s)
Dossier Filing
Date: 2025-07-25
Procedure: Examination
0008199DANR
Intention to grant the patent
Procedural Step
Date: 2025-03-24
Procedure: Grant
IGRA
New entry: Communication of intention to grant a patent
Dossier Filing
Date: 2025-03-23
Procedure: Grant
EPIDOSNIGR1
New entry: Renewal fee paid
Dossier Filing
Date: 2024-09-19
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2024-09-19
Procedure: Examination
RFEE
New entry: Observations by third parties
Dossier Filing
Date: 2023-09-25
Procedure: Examination
EPIDOSNTIPA
Observations by a third party
Procedural Step
Date: 2023-09-21
Procedure: Examination
TIPA
New entry: Renewal fee paid
Dossier Filing
Date: 2023-09-20
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2023-09-20
Procedure: Examination
RFEE
Change - extension states
Dossier Filing
Date: 2022-12-02
Procedure: Examination
0009199EXPT
Change: Validation states
Dossier Filing
Date: 2022-12-02
Procedure: Examination
0009199VAPT
Amendment by applicant
Dossier Filing
Date: 2022-11-16
Procedure: Examination
EPIDOS ABEX
Amendments
Procedural Step
Date: 2022-11-15
Procedure: Examination
ABEX
New entry: Renewal fee paid
Dossier Filing
Date: 2022-09-21
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2022-09-21
Procedure: Examination
RFEE
Publication in section I.1 EP Bulletin
Dossier Filing
Date: 2022-07-08
Procedure: Examination
0009012
The date on which the examining division becomes responsible, has been established
Dossier Filing
Date: 2022-07-08
Procedure: Examination
EPIDOSNEXAM52
Request for examination filed
Dossier Filing
Date: 2022-07-08
Procedure: Examination
0009171
PCT data prior to European publication
Dossier Filing
Date: 2022-06-14
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
Dossier Filing
Date: 2022-04-06
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
Dossier Filing
Date: 2022-03-18
Procedure: Examination
EPIDOS PCT
Change - representative
Dossier Filing
Date: 2022-03-16
Procedure: Examination
EPIDOS FREP
PCT data prior to European publication
Dossier Filing
Date: 2022-03-16
Procedure: Examination
EPIDOS PCT
Payment of national basic fee
Procedural Step
Date: 2022-03-16
Procedure: Examination
FFEE
Payment of the first designation fee
Procedural Step
Date: 2022-03-16
Procedure: Examination
DEST
Payment of the fee for examination
Procedural Step
Date: 2022-03-16
Procedure: Examination
EXAM_PCT
Date on which the examining division has become responsible
Procedural Step
Date: 2022-03-16
Procedure: Examination
EXAM52
PCT data prior to European publication
Dossier Filing
Date: 2021-04-10
Procedure: Examination
EPIDOS PCT
New entry: applicant or inventor
Dossier Filing
Date: 2021-04-10
Procedure: Examination
EPIDOSNWIAI
PCT data prior to European publication
Dossier Filing
Date: 2020-10-27
Procedure: Examination
EPIDOS PCT
Validation of the patent
Procedural Step
Procedure: Examination
VAPT
Extension of the patent
Procedural Step
Procedure: Examination
EXPT
Language of the procedure
Procedural Step
Procedure: Examination
PROL
International searching authority
Procedural Step
Procedure: Examination
ISAT