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 international publication has been made, unknown
EP Register Verified
METHODS OF REDUCING PARTICLE FORMATION AND COMPOSITIONS FORMED THEREBY
Publication No.
EP3684415
•
App No.
EP18762683
•
Filed by
Regeneron Pharmaceuticals, Inc.
•
Filed on
2018-08-10
•
Issued/Published on
2026-07-08
Publication No.
EP3684415
A1
Application No.
EP18762683
Filed: 2018-08-10
Grant Date
2026-07-08
Mention of grant
Active Oppositions
1 Active
EPO Oppositions
Patent Abstract / Summary
Patent abstract is being processed or was not provided in English by the publishing office.
IPC Classifications
A61K9/00, A61K47/26, A61K38/46, A61K39/395, C07K16/00, C07K1/14
A61K47/26, A61K39/00, A61K9/00
Priority Claims
US 201762560365P
Date: 2017-09-19
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
Regeneron Pharmaceuticals, Inc.
777 Old Saw Mill River Road, Tarrytown, NY 10591
USInventors (4)
PATEL, Mayank
c/o Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road
USWASINGER, Stacy
c/o Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road
USSPRITZER, Danya
c/o Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road
USTANG, Xiaolin
c/o Regeneron Pharmaceuticals Inc., 777 Old Saw Mill River Road
USRepresentatives / Agents
Eisenführ Speiser
Patentanwälte Rechtsanwälte PartGmbB, Johannes-Brahms-Platz 1
DED Young & Co LLP
3 Noble Street, London EC2V 7BQ
GBKey Procedural Dates
Request-For-Examination
2020-04-20
First-Examination-Report-Despatched
2022-03-23
Patent Oppositions
Official opposition proceedings filed against European Patent EP3684415 under EPC Article 99.
#1
Opponent
Company
Hampton Knowles Limited
3 Noble Street, GB
Representative
D Young & Co LLP
Filing
Date
Opposition in Progress
2026-07-08
Legal Status & Event History
Official European Patent Office legal and procedural status changes recorded for this file.
| Date | Code | Event Description | Auth |
|---|---|---|---|
| 2020-07-29 | 17P | REQUEST FOR EXAMINATION FILED | EP |
| 2020-07-29 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2020-07-29 | AX | REQUEST FOR EXTENSION OF THE EUROPEAN PATENT | EP |
| 2020-12-11 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2020-12-23 | DAV | REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2020-12-23 | DAX | REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2020-06-26 | PUAI | PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE | EP |
| 2020-06-26 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2019-03-30 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2018-09-14 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2022-03-24 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2022-04-27 | 17Q | FIRST EXAMINATION REPORT DESPATCHED | EP |
| 2023-06-28 | P01 | OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED | EP |
| 2024-04-15 | TPAC | OBSERVATIONS FILED BY THIRD PARTIES | EP |
| 2026-01-21 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-02-25 | RIC1 | INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT | EP |
| 2026-02-27 | GRAP | DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT | EP |
| 2026-02-27 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2026-04-01 | INTG | INTENTION TO GRANT ANNOUNCED | EP |
| 2026-06-04 | GRAS | GRANT FEE PAID | EP |
| 2026-06-05 | GRAA | (EXPECTED) GRANT | EP |
| 2026-06-05 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2026-07-08 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2026-07-08 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-07-10 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-07-10 | PLBI | OPPOSITION FILED | EP |
| 2026-07-15 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-07-23 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-07-29 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-08-12 | 26 | OPPOSITION FILED | EP |
| 2026-09-01 | REG | REFERENCE TO A NATIONAL CODE | 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 |
Patent & Non-Patent Citations
Cited documents and prior art referenced in search and examination reports.
No citations recorded for this publication.
Worldwide Patent Family
Related applications and patents in the same INPADOC worldwide family.
| Country | Publication Number | Kind | Publication Date | Action |
|---|---|---|---|---|
| EP | EP3684415A1 | A1 | 2020-07-29 | Espacenet |
| EP | EP3684415B1 | B1 | 2026-07-08 | Espacenet |
| AR | AR112536A1 | A1 | 2019-11-06 | Espacenet |
| AR | AR135476A2 | A2 | 2026-09-23 | Espacenet |
| AU | AU2018336623A1 | A1 | 2020-03-12 | Espacenet |
| AU | AU2018336623B2 | B2 | 2024-05-09 | Espacenet |
| AU | AU2024205038A1 | A1 | 2024-08-15 | Espacenet |
| AU | AU2024205038B2 | B2 | 2025-12-18 | Espacenet |
| AU | AU2026202007A1 | A1 | 2026-04-02 | Espacenet |
| BR | BR112020005335A2 | A2 | 2020-09-24 | Espacenet |
| CA | CA3073935A1 | A1 | 2019-03-28 | Espacenet |
| CN | CN111201042A | A | 2020-05-26 | Espacenet |
| CN | CN111201042B | B | 2024-05-10 | Espacenet |
| CN | CN118416215A | A | 2024-08-02 | Espacenet |
| IL | IL272954A | A | 2020-04-30 | Espacenet |
| IL | IL272954B1 | B1 | 2024-02-01 | Espacenet |
| IL | IL272954B2 | B2 | 2024-06-01 | Espacenet |
| IL | IL310113A | A | 2024-03-01 | Espacenet |
| IL | IL310113B1 | B1 | 2025-06-01 | Espacenet |
| IL | IL310113B2 | B2 | 2025-10-01 | Espacenet |
| IL | IL320981A | A | 2025-07-01 | Espacenet |
| JP | JP2020534260A | A | 2020-11-26 | Espacenet |
| JP | JP7301043B2 | B2 | 2023-06-30 | Espacenet |
| JP | JP2023112046A | A | 2023-08-10 | Espacenet |
| JP | JP7591620B2 | B2 | 2024-11-28 | Espacenet |
| JP | JP2025015719A | A | 2025-01-30 | Espacenet |
| JP | JP7835827B2 | B2 | 2026-03-25 | Espacenet |
| JP | JP2026083348A | A | 2026-05-19 | Espacenet |
| KR | KR20200054980A | A | 2020-05-20 | Espacenet |
| KR | KR102798879B1 | B1 | 2025-04-30 | Espacenet |
| KR | KR20250057119A | A | 2025-04-28 | Espacenet |
| MX | MX2020002850A | A | 2020-07-24 | Espacenet |
| MX | MX2023014446A | A | 2023-12-15 | Espacenet |
| MY | MY203415A | A | 2024-06-27 | Espacenet |
| SG | SG11202001564QA | A | 2020-04-29 | Espacenet |
| TW | TW201914615A | A | 2019-04-16 | Espacenet |
| TW | TWI831747B | B | 2024-02-11 | Espacenet |
| TW | TW202417047A | A | 2024-05-01 | Espacenet |
| TW | TWI921714B | B | 2026-04-11 | Espacenet |
| TW | TW202626099A | A | 2026-07-01 | Espacenet |
| US | US2019083618A1 | A1 | 2019-03-21 | Espacenet |
| US | US12042538B2 | B2 | 2024-07-23 | Espacenet |
| US | US20240335534A1 | A1 | 2024-10-10 | Espacenet |
| US | US20250312447A1 | A1 | 2025-10-09 | Espacenet |
| WO | WO2019060062A1 | A1 | 2019-03-28 | Espacenet |
| ZA | ZA202001259B | B | 2026-05-27 | Espacenet |
Official File Inspection
EPC Art. 128 Public Dossier
Complete European Patent Register Dossier (148 Total Documents)
The full inspection file for Application EP18762683 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: 2026-07-08
Procedure: Grant
EP3684415B1
Official European Patent Register Full Dossier
Publication Specification
Date: 2026-07-08
Procedure: All Proceedings (Examination & Opposition)
EP18762683
European Patent Application with Search Report (A1)
Publication Specification
Date: 2019-03-28
Procedure: Publication
EP3684415A1
Change - divisional application(s)
Dossier Filing
Date: 2026-07-10
Procedure: Examination
0008299DANR
Opposition filed
Dossier Filing
Date: 2026-07-10
Procedure: Opposition
0009260
(Expected) grant
Dossier Filing
Date: 2026-06-05
Procedure: Grant
0009210
New entry: Payment of fee for grant
Dossier Filing
Date: 2026-06-04
Procedure: Grant
EPIDOSNIGR3
New entry: Payment of fee for publishing/printing
Dossier Filing
Date: 2026-06-04
Procedure: Examination
EPIDOSNIGR5
New entry: Receipt of the translation of the claim(s)
Dossier Filing
Date: 2026-06-03
Procedure: Examination
EPIDOSNIGR7
New entry: Communication of intention to grant a patent
Dossier Filing
Date: 2026-02-27
Procedure: Grant
EPIDOSNIGR1
Intention to grant the patent
Procedural Step
Date: 2026-02-27
Procedure: Grant
IGRA
Change - classification
Dossier Filing
Date: 2026-01-23
Procedure: Examination
0008199IPCL
New entry: Renewal fee paid
Dossier Filing
Date: 2025-08-20
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2025-08-20
Procedure: Examination
RFEE
New entry: Reply to examination report
Dossier Filing
Date: 2024-11-19
Procedure: Examination
EPIDOSNEXR3
New entry: Renewal fee paid
Dossier Filing
Date: 2024-08-20
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2024-08-20
Procedure: Examination
RFEE
New entry: Despatch of examination report + time limit
Dossier Filing
Date: 2024-08-03
Procedure: Examination
EPIDOSNEXR2
Communication from the examining division
Procedural Step
Date: 2024-08-02
Procedure: Examination
EXRE
New entry: Observations by third parties
Dossier Filing
Date: 2024-04-15
Procedure: Examination
EPIDOSNTIPA
Observations by a third party
Procedural Step
Date: 2024-04-12
Procedure: Examination
TIPA
New entry: Renewal fee paid
Dossier Filing
Date: 2023-08-22
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2023-08-22
Procedure: Examination
RFEE
New entry: Reply to examination report
Dossier Filing
Date: 2022-09-30
Procedure: Examination
EPIDOSNEXR3
New entry: Renewal fee paid
Dossier Filing
Date: 2022-08-23
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2022-08-19
Procedure: Examination
RFEE
First examination report
Dossier Filing
Date: 2022-03-25
Procedure: Examination
0009185
New entry: Despatch of examination report + time limit
Dossier Filing
Date: 2022-03-24
Procedure: Examination
EPIDOSNEXR2
Communication from the examining division
Procedural Step
Date: 2022-03-23
Procedure: Examination
EXRE
New entry: Renewal fee paid
Dossier Filing
Date: 2021-08-20
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2021-08-18
Procedure: Examination
RFEE
Change - extension states
Dossier Filing
Date: 2020-11-20
Procedure: Examination
0009199EXPT
Change: Validation states
Dossier Filing
Date: 2020-11-20
Procedure: Examination
0009199VAPT
New entry: Renewal fee paid
Dossier Filing
Date: 2020-08-21
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2020-08-19
Procedure: Examination
RFEE
Publication in section I.1 EP Bulletin
Dossier Filing
Date: 2020-06-26
Procedure: Examination
0009012
The date on which the examining division becomes responsible, has been established
Dossier Filing
Date: 2020-06-26
Procedure: Examination
EPIDOSNEXAM52
Request for examination filed
Dossier Filing
Date: 2020-06-26
Procedure: Examination
0009171
PCT data prior to European publication
Dossier Filing
Date: 2020-05-06
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
Dossier Filing
Date: 2020-04-21
Procedure: Examination
EPIDOS PCT
Payment of national basic fee
Procedural Step
Date: 2020-04-20
Procedure: Examination
FFEE
Payment of the first designation fee
Procedural Step
Date: 2020-04-20
Procedure: Examination
DEST
Payment of the fee for examination
Procedural Step
Date: 2020-04-20
Procedure: Examination
EXAM_PCT
Date on which the examining division has become responsible
Procedural Step
Date: 2020-04-20
Procedure: Examination
EXAM52
Amendment by applicant
Dossier Filing
Date: 2020-04-18
Procedure: Examination
EPIDOS ABEX
Change - representative
Dossier Filing
Date: 2020-04-17
Procedure: Examination
EPIDOS FREP
PCT data prior to European publication
Dossier Filing
Date: 2020-04-17
Procedure: Examination
EPIDOS PCT
Amendments
Procedural Step
Date: 2020-04-16
Procedure: Examination
ABEX
PCT data prior to European publication
Dossier Filing
Date: 2019-04-09
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
Dossier Filing
Date: 2019-03-30
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
Dossier Filing
Date: 2018-09-14
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