The patent EP2628720 was granted to Daicel on Nov 7, 2018. The application was originally filed on Sep 27, 2011 under application number EP11830526A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | JP2001300203 |
| INTERNATIONAL-SEARCH-REPORT | JP2007224040 |
| INTERNATIONAL-SEARCH-REPORT | JP2010106045 |
| INTERNATIONAL-SEARCH-REPORT | JPH0867650 |
| INTERNATIONAL-SEARCH-REPORT | JPS61267533 |
| INTERNATIONAL-SEARCH-REPORT | JPS63290835 |
| SEARCH | EP0687662 |
| SEARCH | EP2653458 |
NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.
| Citation Phase | Reference Text |
|---|---|
| EXAMINATION | - H L Hoffman ET AL, "Distillation: Basic Controls", Instrument Engineer's Handbook, (20060101), pages 1820 - 1854, XP055393082 |
| SEARCH | - AUDUN FAANES ET AL, "Buffer Tank Design for Acceptable Control Performance", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, (20030408), vol. 42, no. 10, doi:10.1021/ie020525v, ISSN 0888-5885, pages 2198 - 2208, XP055137389 [Y] 3,4,9-11,13 * Section 1 (Introduction) * |
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Nov 19, 2018
Oct 11, 2018
Decision to grant a European patent
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Sep 20, 2018
(Electronic) Receipt
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Sep 20, 2018
Filing of the translations of the claims
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Sep 20, 2018
French translation of claims
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German translation of the claims
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Intention to grant (signatures)
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May 28, 2018
Text intended for grant (clean copy)
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May 28, 2018
May 8, 2018
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(Electronic) Receipt
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May 3, 2018
Amended claims with annotations
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Amended claims with annotations
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Amended description with annotations
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Amended description with annotations
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Claims
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Claims
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Description
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Consultation by telephone/in person
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Consultation by telephone/in person
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Mar 16, 2018
Claims
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Advice of delivery
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Advice of delivery
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Acknowledgement of a document
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Summons to attend oral proceedings
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Sep 7, 2017
Advice of delivery
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Advice of delivery
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Advice of delivery
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Acknowledgement of a document
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Summons to attend oral proceedings
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Advice of delivery
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Acknowledgement of a document
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Annex to the communication
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Preparation for oral proceedings
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Summons to attend oral proceedings
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May 19, 2017
Claims
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Annex to the communication
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Communication from the Examining Division
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Examination started
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Amended claims with annotations
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Amendments received before examination
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Translation of priority document
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Feb 24, 2015
Submission concerning representation
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European search opinion
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Supplementary European search report
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Aug 28, 2014
Search started
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Jul 24, 2013
Notification of forthcoming publication
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Communication to designated inventor
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Apr 23, 2013
Mar 20, 2013
(Electronic) Receipt
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Mar 20, 2013
Abstract
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Claims
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Description
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Drawings
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Letter concerning the inventor
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Mar 20, 2013
Request for entry into the European phase
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Feb 15, 2013
Information on entry into European phase
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Feb 7, 2013
Notification of the recording of a change
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Copy of the international search report
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International publication pamphlet
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