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The patent EP3420043 was granted to Exxonmobil Research And Engineering on Jan 13, 2021. The application was filed on Feb 14, 2017 under application number EP17710631A. The patent is currently recorded with a legal status of "Revoked".

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| SASOL WAX | Oct 13, 2021 | MULLER SCHUPFNER & PARTNER PATENT UND RECHTSANWALTSPARTNERSCHAFT MBB MUC | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US6001286 |
| DESCRIPTION | US6183849 |
| DESCRIPTION | US6277310 |
| DESCRIPTION | US6830614 |
| DESCRIPTION | US8071209 |
| DESCRIPTION | US8076006 |
| DESCRIPTION | US8231763 |
| DESCRIPTION | US8343634 |
| DESCRIPTION | US8476345 |
| DESCRIPTION | US8652633 |
| DESCRIPTION | US8748516 |
| DESCRIPTION | WO9924233 |
| INTERNATIONAL-SEARCH-REPORT | US2003091949 |
| INTERNATIONAL-SEARCH-REPORT | US4965305 |
| INTERNATIONAL-SEARCH-REPORT | US6159254 |
| INTERNATIONAL-SEARCH-REPORT | WO0060012 |
| INTERNATIONAL-SEARCH-REPORT | WO0119609 |
| INTERNATIONAL-SEARCH-REPORT | WO2005042682 |
| INTERNATIONAL-SEARCH-REPORT | WO2016032702 |
| INTERNATIONAL-SEARCH-REPORT | WO2016111865 |
| INTERNATIONAL-SEARCH-REPORT | WO2016144761 |
| OPPOSITION | US2006264519 |
| OPPOSITION | US2011042021 |
| OPPOSITION | US2011251306 |
| OPPOSITION | US2015111008 |
| OPPOSITION | US8603197 |
The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.
Date
Description
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Nov 17, 2022
Nov 17, 2022
Nov 14, 2022
Aug 11, 2022
Aug 8, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Aug 3, 2022
Means of redress
OPPO
Aug 3, 2022
Aug 3, 2022
Jun 2, 2022
Jun 2, 2022
May 20, 2022
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May 20, 2022
May 20, 2022
Oct 25, 2021
Oct 25, 2021
Oct 21, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
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Oct 13, 2021
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Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Oct 13, 2021
Feb 9, 2021
Payment submission rejected
Search/Exam
Jan 25, 2021
Dec 17, 2020
Decision to grant a European patent
Search/Exam
Dec 11, 2020
Intention to grant (signatures)
Search/Exam
Dec 3, 2020
Dec 3, 2020
Dec 3, 2020
Text intended for grant (clean copy)
Search/Exam
Dec 3, 2020
Oct 1, 2020
(Electronic) Receipt
Search/Exam
Oct 1, 2020
Amended claims with annotations
Search/Exam
Oct 1, 2020
Claims
Search/Exam
Oct 1, 2020
French translation of claims
Search/Exam
Oct 1, 2020
German translation of the claims
Search/Exam
Oct 1, 2020
Letter accompanying subsequently filed items
Search/Exam
Oct 1, 2020
Jul 16, 2020
(Electronic) Receipt
Search/Exam
Jul 16, 2020
Letter accompanying subsequently filed items
Search/Exam
Jul 16, 2020
Jul 3, 2020
Jul 3, 2020
Jun 29, 2020
(Electronic) Receipt
Search/Exam
Jun 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Jun 29, 2020
Jun 3, 2020
Jun 3, 2020
Jun 3, 2020
Intention to grant (signatures)
Search/Exam
Jun 3, 2020
Text intended for grant (clean copy)
Search/Exam
Jun 3, 2020
Apr 30, 2020
Apr 27, 2020
Annexes in respect of a client data request
Search/Exam
Apr 27, 2020
Dec 20, 2019
(Electronic) Receipt
Search/Exam
Dec 20, 2019
Amended claims with annotations
Search/Exam
Dec 20, 2019
Claims
Search/Exam
Dec 20, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 20, 2019
Aug 22, 2019
Annex to the communication
Search/Exam
Aug 22, 2019
Communication from the Examining Division
Search/Exam
Aug 16, 2019
Examination started
Search/Exam
Apr 15, 2019
(Electronic) Receipt
Search/Exam
Apr 15, 2019
Apr 15, 2019
Amended claims with annotations
Search/Exam
Apr 15, 2019
Amendments received before examination
Search/Exam
Apr 15, 2019
Letter accompanying subsequently filed items
Search/Exam
Dec 5, 2018
Nov 20, 2018
Nov 20, 2018
Oct 30, 2018
(Electronic) Receipt
Search/Exam
Oct 30, 2018
Letter accompanying subsequently filed items
Search/Exam
Oct 30, 2018
Oct 23, 2018
Oct 19, 2018
Communication to designated inventor
Search/Exam
Oct 19, 2018
Communication to designated inventor
Search/Exam
Oct 19, 2018
Communication to designated inventor
Search/Exam
Sep 25, 2018
(Electronic) Receipt
Search/Exam
Sep 25, 2018
Sep 25, 2018
Amended claims with annotations
Search/Exam
Sep 25, 2018
Request for entry into the European phase
Search/Exam
Sep 12, 2018
Jul 4, 2018
Information on entry into European phase
Search/Exam
Sep 22, 2017
Aug 31, 2017
Copy of the international search report
Search/Exam
Aug 31, 2017
Published international application - A1
Search/Exam
May 11, 2017
ISR: cited documents
PCTISA
May 10, 2017
May 10, 2017
May 10, 2017
Mar 27, 2017
Mar 13, 2017
Annex
PCTISA
Mar 13, 2017
Mar 13, 2017
Feb 21, 2017
Abstract
PCTISA
Feb 21, 2017
Annex
PCTISA
Feb 21, 2017
Claims
PCTISA
Feb 21, 2017
Description
PCTISA
Feb 21, 2017
Drawings
PCTISA
Feb 21, 2017
Feb 21, 2017
Feb 21, 2017
Feb 21, 2017
Feb 21, 2017