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The patent EP3089957 was granted to BP North America on Dec 30, 2020. The application was filed on Feb 11, 2014 under application number EP14709775A. 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 |
|---|---|---|---|
| WITHERS & ROGERS LLPJONES NICHOLASWRIGHT HOWARD WALLIN NICHOLAS | Sep 27, 2021 | STEPNEY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005051473 |
| DESCRIPTION | US2741369 |
| DESCRIPTION | US5723656 |
| DESCRIPTION | US6137001 |
| DESCRIPTION | US7807060 |
| DESCRIPTION | US7935844 |
| DESCRIPTION | US7935845 |
| DESCRIPTION | US8173834 |
| INTERNATIONAL-SEARCH-REPORT | GB1047433 |
| INTERNATIONAL-SEARCH-REPORT | GB785045 |
| INTERNATIONAL-SEARCH-REPORT | US5723656 |
| INTERNATIONAL-SEARCH-REPORT | WO2006102137 |
| INTERNATIONAL-SEARCH-REPORT | WO2011041151 |
| INTERNATIONAL-SEARCH-REPORT | WO2011100682 |
| OPPOSITION | US5643468 |
| OPPOSITION | US5877346 |
| OPPOSITION | WO9218453 |
| OPPOSITION | WO9324441 |
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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Dec 3, 2020
Decision to grant a European patent
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Nov 24, 2020
(Electronic) Receipt
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Nov 24, 2020
Filing of the translations of the claims
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Nov 24, 2020
French translation of claims
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Nov 24, 2020
German translation of the claims
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Nov 24, 2020
Letter accompanying subsequently filed items
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Jul 24, 2020
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Intention to grant (signatures)
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Jul 24, 2020
Text intended for grant (clean copy)
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Jul 24, 2020
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Advice of delivery
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Jun 25, 2020
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(Electronic) Receipt
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Jun 24, 2020
Amended description with annotations
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Jun 24, 2020
Description
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Jun 24, 2020
Letter accompanying subsequently filed items
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Jun 24, 2020
Jun 12, 2020
May 29, 2020
(Electronic) Receipt
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May 29, 2020
Amended claims with annotations
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May 29, 2020
Amended claims with annotations
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May 29, 2020
Amended claims with annotations
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May 29, 2020
Amended claims with annotations
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May 29, 2020
Amended claims with annotations
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May 29, 2020
Amended claims with annotations
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May 29, 2020
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May 29, 2020
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May 29, 2020
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May 29, 2020
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May 29, 2020
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May 29, 2020
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May 29, 2020
Letter accompanying subsequently filed items
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May 29, 2020
Feb 19, 2020
Annex to the communication
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Feb 19, 2020
Summons to attend oral proceedings
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Sep 27, 2019
(Electronic) Receipt
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Sep 27, 2019
Amended claims with annotations
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Sep 27, 2019
Amended description with annotations
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Sep 27, 2019
Claims
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Sep 27, 2019
Description
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Sep 27, 2019
Letter accompanying subsequently filed items
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Sep 27, 2019
May 31, 2019
Annex to the communication
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May 31, 2019
Communication from the Examining Division
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Jan 29, 2019
(Electronic) Receipt
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Jan 29, 2019
Amended claims with annotations
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Jan 29, 2019
Claims
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Jan 29, 2019
Letter accompanying subsequently filed items
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Jan 29, 2019
Nov 26, 2018
Nov 21, 2018
(Electronic) Receipt
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Nov 21, 2018
Letter accompanying subsequently filed items
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Nov 21, 2018
Jul 19, 2018
Annex to the communication
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Jul 19, 2018
Communication from the Examining Division
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Jul 13, 2018
Examination started
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Oct 12, 2016
Aug 31, 2016
Refund of fees
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Aug 26, 2016
Aug 24, 2016
Communication to designated inventor
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Jul 21, 2016
Jul 15, 2016
(Electronic) Receipt
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Jul 15, 2016
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Request for entry into the European phase
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Jul 15, 2016
Submission concerning representation
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May 13, 2016
Information on entry into European phase
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Jul 28, 2015
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Copy of the international search report
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Jul 9, 2015
Published international application - A1
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Sep 10, 2014
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Feb 24, 2014
Abstract
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Feb 24, 2014
Claims
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Feb 24, 2014
Description
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Feb 24, 2014
Drawings
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