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EP3957707
European procedure
Extract from the Register of European Patents
EP About this file: EP3957707
| EP3957707 - LEAN BURN ENGINE-USE FUEL COMPOSITION [Right-click to bookmark this link] | Status | The patent has been granted Status updated on 05.09.2025 Database last updated on 28.03.2026 | |
| Former | Grant of patent is intended Status updated on 02.05.2025 | ||
| Former | Examination is in progress Status updated on 21.04.2023 | ||
| Former | Request for examination was made Status updated on 21.01.2022 | ||
| Former | The international publication has been made Status updated on 05.02.2021 | Most recent event Tooltip | 20.03.2026 | Lapse of the patent in a contracting state | published on 22.04.2026 [2026/17] | Applicant(s) | For all designated states ENEOS Corporation 1-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8162 / JP | [2022/08] | Inventor(s) | 01 /
OBATA, Ken c/o JXTG Nippon Oil & Energy Corporation, 1-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8162 / JP | 02 /
NAIKI, Taketora c/o JXTG Nippon Oil & Energy Corporation, 1-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8162 / JP | [2022/30] |
| Former [2022/08] | 01 /
OBATA, Ken c/o JXTG Nippon Oil & Energy Corporation, 1-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8162 / JP | ||
| 02 /
NAIKI, Taketora c/o JXTG Nippon Oil & Energy Corporation, 1-2, Otemachi 1-chome Chiyoda-ku Tokyo 100-8162 / JP | Representative(s) | Grünecker Patent- und Rechtsanwälte PartG mbB Leopoldstraße 4 80802 München / DE | [2022/08] | Application number, filing date | 20847429.6 | 17.07.2020 | [2022/08] | WO2020JP27879 | Priority number, date | JP20190140862 | 31.07.2019 Original published format: JP 2019140862 | [2022/08] | Filing language | JA | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO2021020181 | Date: | 04.02.2021 | Language: | JA | [2021/05] | Type: | A1 Application with search report | No.: | EP3957707 | Date: | 23.02.2022 | Language: | EN | [2022/08] | Type: | B1 Patent specification | No.: | EP3957707 | Date: | 08.10.2025 | Language: | EN | [2025/41] | Search report(s) | International search report - published on: | JP | 04.02.2021 | (Supplementary) European search report - dispatched on: | EP | 22.11.2022 | Classification | IPC: | C10L1/06 | [2022/08] | CPC: |
C10L1/06 (EP,US);
C10L1/04 (CN);
C10L2230/22 (CN)
| 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 [2022/08] | Extension states | BA | Not yet paid | ME | Not yet paid | Validation states | KH | Not yet paid | MA | Not yet paid | MD | Not yet paid | TN | Not yet paid | Title | German: | KRAFTSTOFFZUSAMMENSETZUNG FÜR MAGERMOTOR | [2022/08] | English: | LEAN BURN ENGINE-USE FUEL COMPOSITION | [2022/08] | French: | COMPOSITION DE CARBURANT POUR MOTEUR À CHARGE STRATIFIÉE | [2022/08] | Entry into regional phase | 15.11.2021 | Translation filed | 15.11.2021 | National basic fee paid | 15.11.2021 | Search fee paid | 15.11.2021 | Designation fee(s) paid | 15.11.2021 | Examination fee paid | Examination procedure | 15.11.2021 | Examination requested [2022/08] | 22.03.2023 | Amendment by applicant (claims and/or description) | 24.04.2023 | Despatch of a communication from the examining division (Time limit: M06) | 23.10.2023 | Reply to a communication from the examining division | 02.05.2025 | Communication of intention to grant the patent | 01.09.2025 | Fee for grant paid | 01.09.2025 | Fee for publishing/printing paid | 01.09.2025 | Receipt of the translation of the claim(s) | Fees paid | Renewal fee | 28.07.2022 | Renewal fee patent year 03 | 27.07.2023 | Renewal fee patent year 04 | 30.07.2024 | Renewal fee patent year 05 | 25.07.2025 | 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. | Lapses during opposition Tooltip | NL | 08.10.2025 | [2026/17] | Documents cited: | Search | [X] JPH08127783 (COSMO SOGO KENKYUSHO KK et al.) [X] 1-3 * example 2; table 2 * | [X] JP2011241406 (JX NIPPON OIL & ENERGY CORP et al.) [X] 1,3-4 * Table 1; Composition B * | [X] JP2006063262 (JAPAN ENERGY CORP et al.) [X] 1,3-4 * Table 1; columns DS-LG and TLN * | [X] JP2006083366 (JAPAN ENERGY CORP et al.) [X] 1-4 * Table 1, FCCGLL * | International search | [X] JPH07188678 (TONEN CORP et al.) [X] 1-4 * 3, [0 0 01 ] [0005] * | [XA] JP2007182579 (JOMO TECHNICAL RES CT CO LTD et al.) [X] 1-2 * 1, 1 ~ 2, 4~5 1, 1 ~ 2, 4~5 *[A] 3-4 | [A] JP2000073074 (NIPPON MITSUBISHI OIL CORP et al.) [A] 1-4 | by applicant | JP2007182579 |