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The patent EP2308466 was granted to Alcon Research on May 31, 2017. The application was filed on Mar 3, 2009 under application number EP10196245A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
Multi-dose ophthalmic pharmaceutical composition that exhibits desired buffering and desired anti-microbial activity. The composition includes two or more different polyols in conjunction with borate, a preservative or both.

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 |
|---|---|---|---|
| ALFRED E TIEFENBACHER | Feb 28, 2018 | GILL JENNINGS & EVERY | - |
| GENERICS UK TRADING MYLAN | Feb 28, 2018 | GILL JENNINGS & EVERY | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20090037137 |
| DESCRIPTION | US3931319 |
| DESCRIPTION | US4027020 |
| DESCRIPTION | US4407791 |
| DESCRIPTION | US4525346 |
| DESCRIPTION | US4836986 |
| DESCRIPTION | US5037647 |
| DESCRIPTION | US5300287 |
| DESCRIPTION | US5505953 |
| DESCRIPTION | US5603929 |
| DESCRIPTION | US5631287 |
| DESCRIPTION | US5653972 |
| DESCRIPTION | US5811466 |
| DESCRIPTION | US5849792 |
| DESCRIPTION | US6011062 |
| DESCRIPTION | US6143799 |
| DESCRIPTION | US6365636 |
| DESCRIPTION | US6503497 |
| DESCRIPTION | US6849253 |
| DESCRIPTION | WO9109523 |
| OPPOSITION | EP0462460 |
| OPPOSITION | EP2265251 |
| OPPOSITION | US2005239900 |
| OPPOSITION | US2006229219 |
| OPPOSITION | US6743439 |
| OPPOSITION | WO0249615 |
| OPPOSITION | WO2005060953 |
| OPPOSITION | WO9321903 |
| OPPOSITION | WO9852579 |
| SEARCH | EP0462460 |
| SEARCH | US2005239900 |
| SEARCH | US6743439 |
| SEARCH | WO9321903 |
| SEARCH | WO9852579 |
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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(Electronic) Receipt
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
Jan 27, 2020
(Electronic) Receipt
Appeal
Jan 27, 2020
(Electronic) Receipt
Appeal
Jan 27, 2020
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Claims
Appeal
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(Electronic) Receipt
Appeal
Nov 14, 2019
Notice of appeal
Appeal
Nov 7, 2019
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Oct 31, 2019
(Electronic) Receipt
Appeal
Oct 31, 2019
Notice of appeal
Appeal
Oct 4, 2019
Advice of delivery
Appeal
Oct 4, 2019
Advice of delivery
Appeal
Oct 3, 2019
(Electronic) Receipt
Appeal
Oct 3, 2019
Oct 3, 2019
Notice of appeal
Appeal
Sep 26, 2019
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Means of redress
OPPO
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Claims
OPPO
Jun 18, 2019
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OPPO
Jun 18, 2019
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OPPO
Jun 18, 2019
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OPPO
Jun 18, 2019
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OPPO
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Apr 25, 2019
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Authorisation
OPPO
Mar 26, 2019
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Submission concerning representation
Search/Exam
Mar 13, 2019
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May 31, 2017
May 8, 2017
Decision to grant a European patent
Search/Exam
Apr 20, 2017
(Electronic) Receipt
Search/Exam
Apr 20, 2017
Filing of the translations of the claims
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Apr 20, 2017
French translation of claims
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Apr 20, 2017
German translation of the claims
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Apr 20, 2017
Letter accompanying subsequently filed items
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Apr 13, 2017
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Intention to grant (signatures)
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Apr 13, 2017
Text intended for grant (clean copy)
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Apr 13, 2017
Mar 16, 2017
(Electronic) Receipt
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Mar 16, 2017
Enquiry as to the processing of the file
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Mar 16, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2017
(Electronic) Receipt
Search/Exam
Feb 28, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 28, 2017
Feb 22, 2017
Annex to the communication
Search/Exam
Feb 22, 2017
Feb 22, 2017
Feb 16, 2017
(Electronic) Receipt
Search/Exam
Feb 16, 2017
Amended claims with annotations
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Feb 16, 2017
Amended description with annotations
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Feb 16, 2017
Claims
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Feb 16, 2017
Description
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Feb 16, 2017
Letter accompanying subsequently filed items
Search/Exam
Feb 16, 2017
Matter concerning the application
Search/Exam
Oct 21, 2016
(Electronic) Receipt
Search/Exam
Oct 21, 2016
Amended claims with annotations
Search/Exam
Oct 21, 2016
Claims
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Oct 21, 2016
Letter accompanying subsequently filed items
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Oct 21, 2016
Aug 24, 2016
Jul 29, 2016
Letter accompanying subsequently filed items
Search/Exam
Jul 29, 2016
Payment of fees and costs
Search/Exam
Jul 29, 2016
Payment of fees and costs
Search/Exam
Jul 29, 2016
Jun 14, 2016
Annex to the communication
Search/Exam
Jun 14, 2016
Communication from the Examining Division
Search/Exam
Feb 19, 2016
Registration under Rule 23 EPC
Search/Exam
Feb 18, 2016
Advice of delivery
Appeal
Feb 16, 2016
Advice of delivery
Appeal
Feb 15, 2016
(Electronic) Receipt
Search/Exam
Feb 15, 2016
Annex
Search/Exam
Feb 15, 2016
Letter accompanying subsequently filed items
Search/Exam
Feb 15, 2016
Letter to the Legal Division
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Feb 15, 2016
Letter to the Legal Division
Search/Exam
Feb 10, 2016
Decision of the Board of Appeal
Search/Exam
Feb 10, 2016
Feb 10, 2016
F3032 Notification(s) of the decision
Search/Exam
Feb 10, 2016
Jan 5, 2016
Deficiencies as to Rule 23 EPC
Search/Exam
Jan 5, 2016
Rule 23 - Annex A
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Jan 5, 2016
Rule 23 - Annex B
Search/Exam
Dec 18, 2015
(Electronic) Receipt
Search/Exam
Dec 18, 2015
Annex
Search/Exam
Dec 18, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 18, 2015
Letter to the Legal Division
Search/Exam
Dec 10, 2015
Dec 10, 2015
Dec 3, 2015
(Electronic) Receipt
Search/Exam
Dec 3, 2015
Annexes in respect of a client data request
Search/Exam
Dec 3, 2015
Letter accompanying subsequently filed items
Search/Exam
Dec 3, 2015
Nov 25, 2015
Oct 27, 2015
Claims
Appeal
Oct 27, 2015
Sep 30, 2015
Sep 30, 2015
Sep 30, 2015
May 13, 2014
Submission concerning representation
Search/Exam
Feb 24, 2014
Jan 13, 2014
Dec 17, 2013
Processing of an appeal
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Claims
Appeal
Dec 13, 2013
Sep 30, 2013
Claims
Appeal
Sep 30, 2013
Notice of appeal
Appeal
Sep 30, 2013
Aug 7, 2013
Advice of delivery
Search/Exam
Aug 7, 2013
Advice of delivery
Search/Exam
Aug 6, 2013
Acknowledgement of a document
Search/Exam
Aug 6, 2013
Aug 6, 2013
Aug 6, 2013
Grounds for the decision (Annex)
Search/Exam
Aug 6, 2013
Means of redress
Search/Exam
Jul 12, 2013
Jul 5, 2013
Advice of delivery
Search/Exam
Jul 5, 2013
Jul 5, 2013
Jul 5, 2013
Withdrawal of a request for oral proceedings
Search/Exam
Jul 5, 2013
Withdrawal of a request for oral proceedings
Search/Exam
Jun 19, 2013
Jun 14, 2013
Feb 1, 2013
Advice of delivery
Search/Exam
Feb 1, 2013
Advice of delivery
Search/Exam
Jan 31, 2013
Acknowledgement of a document
Search/Exam
Jan 31, 2013
Annex to the communication
Search/Exam
Jan 31, 2013
Preparation for oral proceedings
Search/Exam
Jan 31, 2013
Summons to attend oral proceedings
Search/Exam
Jul 10, 2012
Claims
Search/Exam
Jul 10, 2012
Claims
Search/Exam
Jul 10, 2012
Mar 7, 2012
Annex to a communication
Search/Exam
Mar 7, 2012
Annex to the communication
Search/Exam
Mar 7, 2012
Communication from the Examining Division
Search/Exam
Oct 7, 2011
Oct 7, 2011
Amendments received before examination
Search/Exam
Sep 9, 2011
Apr 18, 2011
Apr 6, 2011
Refund of fees
Search/Exam
Mar 16, 2011
Notification of forthcoming publication
Search/Exam
Mar 8, 2011
Mar 8, 2011
European search opinion
Search/Exam
Mar 8, 2011
European search report
Search/Exam
Mar 2, 2011
Feb 17, 2011
Submission concerning representation
Search/Exam
Jan 26, 2011
Dec 21, 2010
Abstract
Search/Exam
Dec 21, 2010
Dec 21, 2010
Claims
Search/Exam
Dec 21, 2010
Description
Search/Exam
Dec 21, 2010
Designation of inventor
Search/Exam
Dec 21, 2010
Designation of inventor
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Dec 21, 2010
Letter concerning search matters
Search/Exam
Dec 21, 2010
Request for grant of a European patent
Search/Exam
Oct 15, 2009