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SOLVENT FOR GAS CHROMATOGRAPY MASS SPECTOMETRY, AND METHOD FOR DETERMINATION OF FLUORINE-CONTAINING SUBSTANCES ON THE SURFACE OF FLUORORESIN MELT-MOLDED PRODUCTS
Publication No.
EP3935379
•
App No.
EP20716041
•
Filed by
Chemours-Mitsui Fluoroproducts Co., Ltd.
•
Filed on
2020-03-04
•
Issued/Published on
2024-11-20
Publication No.
EP3935379
A1
Application No.
EP20716041
Filed: 2020-03-04
Grant Date
2020-03-04
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
G01N30/06, G01N30/88, // G01N30/34
G01N30/06, G01N30/88
Priority Claims
JP 20190040040
Date: 2019-03-05
Designated Contracting States (38 EPC States)
Albania
(AL)
Austria
(AT)
Belgium
(BE)
Bulgaria
(BG)
Switzerland
(CH)
Cyprus
(CY)
Czech Republic
(CZ)
Germany
(DE)
Denmark
(DK)
Estonia
(EE)
Spain
(ES)
Finland
(FI)
France
(FR)
United Kingdom
(GB)
Greece
(GR)
Croatia
(HR)
Hungary
(HU)
Ireland
(IE)
Iceland
(IS)
Italy
(IT)
Liechtenstein
(LI)
Lithuania
(LT)
Luxembourg
(LU)
Latvia
(LV)
Monaco
(MC)
North Macedonia
(MK)
Malta
(MT)
Netherlands
(NL)
Norway
(NO)
Poland
(PL)
Portugal
(PT)
Romania
(RO)
Serbia
(RS)
Sweden
(SE)
Slovenia
(SI)
Slovakia
(SK)
San Marino
(SM)
Turkey
(TR)
Parties & Representation
Applicants
Chemours-Mitsui Fluoroproducts Co., Ltd.
Kamiyacho Prime Place, 4-1-17, Toranomon
JPInventors (2)
YABE, Hiromasa
Minami Yabe 631-8-103, Shimizu-Ku, Shizuoka-Shi, Shizuoka-Ken, Shizuoka 424-0864
JPITAGAKI, Hiroko
c/o Chemours-Mitsui Fluoroproducts Co., Ltd
JPRepresentatives / Agents
Mewburn Ellis LLP
Aurora Building, Counterslip
GBAbitz & Partner, et al
Postfach 86 01 09, 81628 München
DEHeinemann, Monica, et al
Abitz & Partner, Patentanwälte mbB
DEHoffmann Eitle
Patent- und Rechtsanwälte PartmbB, Arabellastraße 30
DEKey Procedural Dates
Request-For-Examination
2021-09-14
Mention Of Grant Published
2020-03-04
First-Examination-Report-Despatched
2023-11-21
Patent Oppositions
Official opposition proceedings filed against European Patent EP3935379 under EPC Article 99.
#1
Opponent
Company
Daikin Industries, Ltd.
Umeda Center Bldg. 2-4-12, Nakazaki-Nishi Kita-ku, JP
Representative
Hoffmann Eitle
Filing
Date
Opposition in Progress
2025-08-13
Legal Status & Event History
Official European Patent Office legal and procedural status changes recorded for this file.
| Date | Code | Event Description | Auth |
|---|---|---|---|
| 2020-09-11 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2020-04-11 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2021-12-10 | PUAI | PUBLIC REFERENCE MADE UNDER ARTICLE 153(3) EPC TO A PUBLISHED INTERNATIONAL APPLICATION THAT HAS ENTERED THE EUROPEAN PHASE | EP |
| 2021-12-10 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2022-01-12 | 17P | REQUEST FOR EXAMINATION FILED | EP |
| 2022-01-12 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2022-06-15 | DAX | REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2022-06-15 | DAV | REQUEST FOR VALIDATION OF THE EUROPEAN PATENT (DELETED) | EP |
| 2022-07-08 | TPAC | OBSERVATIONS FILED BY THIRD PARTIES | EP |
| 2023-11-17 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2023-12-20 | 17Q | FIRST EXAMINATION REPORT DESPATCHED | EP |
| 2024-06-13 | GRAP | DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT | EP |
| 2024-06-14 | GRAP | DESPATCH OF COMMUNICATION OF INTENTION TO GRANT A PATENT | EP |
| 2024-06-14 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2024-07-03 | RIC1 | INFORMATION PROVIDED ON IPC CODE ASSIGNED BEFORE GRANT | EP |
| 2024-07-10 | INTG | INTENTION TO GRANT ANNOUNCED | EP |
| 2024-10-14 | GRAS | GRANT FEE PAID | EP |
| 2024-10-18 | GRAA | (EXPECTED) GRANT | EP |
| 2024-10-18 | STAA | INFORMATION ON THE STATUS OF AN EP PATENT APPLICATION OR GRANTED EP PATENT | EP |
| 2024-11-20 | AK | DESIGNATED CONTRACTING STATES | EP |
| 2024-11-20 | P01 | OPT-OUT OF THE COMPETENCE OF THE UNIFIED PATENT COURT (UPC) REGISTERED | EP |
| 2024-11-20 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2024-11-29 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2024-12-05 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2024-12-18 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-03-25 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-03-26 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-04-11 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
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| 2025-04-16 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-04-17 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-04-15 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-04-23 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-04-24 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-04-25 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-04-29 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-03 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-10 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-18 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-24 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-25 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-28 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-07-29 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-08-15 | PLBI | OPPOSITION FILED | EP |
| 2025-08-13 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-09-09 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-09-17 | 26 | OPPOSITION FILED | EP |
| 2025-09-03 | PLAX | NOTICE OF OPPOSITION AND REQUEST TO FILE OBSERVATION + TIME LIMIT SENT | EP |
| 2025-10-13 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-10-23 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2025-11-17 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2025-11-26 | GBPC | GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE | EP |
| 2025-12-12 | REG | REFERENCE TO A NATIONAL CODE | EP |
| 2026-01-09 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-01-06 | PLBB | REPLY OF PATENT PROPRIETOR TO NOTICE(S) OF OPPOSITION RECEIVED | 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 |
| 2026-01-19 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
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| 2026-04-13 | PGFP | ANNUAL FEE PAID TO NATIONAL OFFICE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-06-10 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
| 2026-06-29 | PG25 | LAPSED IN A CONTRACTING STATE [ANNOUNCED VIA POSTGRANT INFORMATION FROM NATIONAL OFFICE TO EPO] | EP |
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| 2026-09-09 | PG25 | LAPSED IN A CONTRACTING STATE [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.
Cited Patent Documents
Non-Patent Scientific Literature (NPL)
- FLUORINE CHEMISTRY COMMITTEE 155 OF JAPAN SOCIETY FOR THE PROMOTION OF SCIENCE: "Introduction to Fluorine Chemistry; First Edition", 1 March 2004, SANKYO PUBLISHING CO., LTD., ISBN: 4-7827-0487-9, article FLUORINE CHEMISTRY COMMITTEE 155 OF JAPAN SOCIETY FOR THE PROMOTION OF SCIENCE: "Passage; Introduction to Fluorine Chemistry", pages: 66 - 69, XP009538363
- EXPERIMENTAL EVIDENCE SUBMITTED BY PATENTEE
Worldwide Patent Family
Related applications and patents in the same INPADOC worldwide family.
| Country | Publication Number | Kind | Publication Date | Action |
|---|---|---|---|---|
| EP | EP3935379A1 | A1 | 2022-01-12 | Espacenet |
| EP | EP3935379B1 | B1 | 2024-11-20 | Espacenet |
| CN | CN113574376A | A | 2021-10-29 | Espacenet |
| CN | CN113574376B | B | 2025-07-15 | Espacenet |
| CN | CN120468351A | A | 2025-08-12 | Espacenet |
| JP | JP2020148764A | A | 2020-09-17 | Espacenet |
| JP | JP6959600B2 | B2 | 2021-11-02 | Espacenet |
| JP | JP2021080462A | A | 2021-05-27 | Espacenet |
| JP | JP7121815B2 | B2 | 2022-08-18 | Espacenet |
| KR | KR20210135264A | A | 2021-11-12 | Espacenet |
| KR | KR102882336B1 | B1 | 2025-11-07 | Espacenet |
| US | US2022146468A1 | A1 | 2022-05-12 | Espacenet |
| US | US20260219244A1 | A1 | 2026-07-30 | Espacenet |
| WO | WO2020180968A1 | A1 | 2020-09-10 | Espacenet |
Official File Inspection
EPC Art. 128 Public Dossier
Complete European Patent Register Dossier (148 Total Documents)
The full inspection file for Application EP20716041 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: 2024-11-20
Procedure: Grant
EP3935379B1
Official European Patent Register Full Dossier
Publication Specification
Date: 2024-11-20
Procedure: All Proceedings (Examination & Opposition)
EP20716041
European Patent Application with Search Report (A1)
Publication Specification
Date: 2020-09-10
Procedure: Publication
EP3935379A1
Oral proceedings
Procedural Step
Date: 2027-01-14
Procedure: Examination
ORAL
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-09-11
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-07-10
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-07-03
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-06-12
Procedure: Examination
0009250
New entry: Date of oral proceedings
Dossier Filing
Date: 2026-03-25
Procedure: Examination
EPIDOSNORA1O
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-01-23
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2026-01-16
Procedure: Examination
0009250
New entry: Reply of patent proprietor to notice(s) of opposition
Dossier Filing
Date: 2026-01-06
Procedure: Opposition
EPIDOSNOBS3
Change - representative
Dossier Filing
Date: 2025-12-10
Procedure: Examination
EPIDOS FREP
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-11-21
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-10-17
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-09-12
Procedure: Examination
0009250
Invitation to proprietor to file observations on the notice of opposition
Procedural Step
Date: 2025-09-04
Procedure: Opposition
OBSO
New entry: Communication of a notice of opposition and request to file observations + time limit
Dossier Filing
Date: 2025-09-03
Procedure: Opposition
EPIDOSNOBS2
Opposition filed
Dossier Filing
Date: 2025-08-15
Procedure: Opposition
0009260
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-08-01
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-07-25
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-07-11
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-07-04
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-05-02
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-04-25
Procedure: Examination
0009250
Lapse of the patent in a contracting state
Dossier Filing
Date: 2025-04-18
Procedure: Examination
0009250
(Expected) grant
Dossier Filing
Date: 2024-10-18
Procedure: Grant
0009210
New entry: Payment of fee for grant
Dossier Filing
Date: 2024-10-14
Procedure: Grant
EPIDOSNIGR3
New entry: Payment of fee for publishing/printing
Dossier Filing
Date: 2024-10-14
Procedure: Examination
EPIDOSNIGR5
New entry: Receipt of the translation of the claim(s)
Dossier Filing
Date: 2024-10-14
Procedure: Examination
EPIDOSNIGR7
New entry: Communication of intention to grant a patent
Dossier Filing
Date: 2024-06-14
Procedure: Grant
EPIDOSNIGR1
Intention to grant the patent
Procedural Step
Date: 2024-06-14
Procedure: Grant
IGRA
Change - classification
Dossier Filing
Date: 2024-05-31
Procedure: Examination
0008199IPCL
New entry: Renewal fee paid
Dossier Filing
Date: 2024-03-20
Procedure: Examination
EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2024-03-20
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RFEE
New entry: Reply to examination report
Dossier Filing
Date: 2024-03-18
Procedure: Examination
EPIDOSNEXR3
New entry: Despatch of examination report + time limit
Dossier Filing
Date: 2023-11-22
Procedure: Examination
EPIDOSNEXR2
Communication from the examining division
Procedural Step
Date: 2023-11-21
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EXRE
First examination report
Dossier Filing
Date: 2023-11-17
Procedure: Examination
0009185
Change - representative
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Date: 2023-10-27
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EPIDOS FREP
New entry: Renewal fee paid
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Date: 2023-03-21
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EPIDOSNRFE2
Renewal fee payment
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Date: 2023-03-21
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RFEE
New entry: Observations by third parties
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Date: 2022-07-08
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EPIDOSNTIPA
Observations by a third party
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Date: 2022-07-05
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TIPA
Change - extension states
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Date: 2022-05-13
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0009199EXPT
Change: Validation states
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Date: 2022-05-13
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0009199VAPT
Amendment by applicant
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Date: 2022-04-25
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EPIDOS ABEX
Amendments
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Date: 2022-04-22
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ABEX
New entry: Renewal fee paid
Dossier Filing
Date: 2022-03-25
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EPIDOSNRFE2
Renewal fee payment
Procedural Step
Date: 2022-03-23
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RFEE
PCT data prior to European publication
Dossier Filing
Date: 2022-01-24
Procedure: Examination
EPIDOS PCT
Publication in section I.1 EP Bulletin
Dossier Filing
Date: 2021-12-10
Procedure: Examination
0009012
The date on which the examining division becomes responsible, has been established
Dossier Filing
Date: 2021-12-10
Procedure: Examination
EPIDOSNEXAM52
Request for examination filed
Dossier Filing
Date: 2021-12-10
Procedure: Examination
0009171
PCT data prior to European publication
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Date: 2021-11-15
Procedure: Examination
EPIDOS PCT
PCT data prior to European publication
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Date: 2021-10-07
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EPIDOS PCT
PCT data prior to European publication
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Date: 2021-09-20
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EPIDOS PCT
PCT data prior to European publication
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Date: 2021-09-16
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EPIDOS PCT
Change - representative
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Date: 2021-09-14
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EPIDOS FREP
PCT data prior to European publication
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Date: 2021-09-14
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EPIDOS PCT
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Payment of the fee for examination
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Date: 2021-09-14
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Date on which the examining division has become responsible
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Date: 2021-09-14
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PCT data prior to European publication
Dossier Filing
Date: 2020-09-11
Procedure: Examination
EPIDOS PCT
New entry: applicant or inventor
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Date: 2020-09-11
Procedure: Examination
EPIDOSNWIAI
PCT data prior to European publication
Dossier Filing
Date: 2020-04-11
Procedure: Examination
EPIDOS PCT
Validation of the patent
Procedural Step
Procedure: Examination
VAPT
Extension of the patent
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EXPT
Language of the procedure
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Procedure: Examination
PROL
International searching authority
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Procedure: Examination
ISAT