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The patent EP2852935 was granted to Glassescom on Aug 19, 2020. The application was filed on May 23, 2013 under application number EP13793957A. The patent is currently recorded with a legal status of "Opposition Rejected".

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 |
|---|---|---|---|
| CARL ZEISS | May 19, 2021 | GLAWE | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | KR20000051217 |
| INTERNATIONAL-SEARCH-REPORT | US2007127848 |
| INTERNATIONAL-SEARCH-REPORT | US2009153569 |
| INTERNATIONAL-SEARCH-REPORT | US2011001791 |
| INTERNATIONAL-SEARCH-REPORT | WO2010039976 |
| OPPOSITION | DE102004032191 |
| OPPOSITION | EP1940152 |
| OPPOSITION | US2005162419 |
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.
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Decision to grant a European patent
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Jul 10, 2020
(Electronic) Receipt
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Jul 10, 2020
Filing of the translations of the claims
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Jul 10, 2020
French translation of claims
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Jul 10, 2020
German translation of the claims
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Jul 10, 2020
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Apr 30, 2020
Text intended for grant (clean copy)
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(Electronic) Receipt
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(Electronic) Receipt
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Jan 22, 2020
Amended claims with annotations
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Jan 22, 2020
Claims
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Jan 22, 2020
Letter accompanying subsequently filed items
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Jan 22, 2020
Letter accompanying subsequently filed items
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Jan 22, 2020
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Submission concerning representation
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Nov 19, 2019
Annex to the communication
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Nov 19, 2019
Communication from the Examining Division
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Jun 11, 2019
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(Electronic) Receipt
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Jun 10, 2019
Amended claims with annotations
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Amended claims with annotations
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Amended claims with annotations
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Amended claims with annotations
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Jun 10, 2019
Claims
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Claims
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Jun 10, 2019
Letter accompanying subsequently filed items
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Jun 10, 2019
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(Electronic) Receipt
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Jun 3, 2019
Letter accompanying subsequently filed items
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Jun 3, 2019
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(Electronic) Receipt
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May 2, 2019
Annexes in respect of a client data request
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Annexes in respect of a client data request
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Letter accompanying subsequently filed items
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May 2, 2019
Mar 28, 2019
Annex to the communication
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Mar 28, 2019
Communication from the Examining Division
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Nov 23, 2018
(Electronic) Receipt
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Nov 23, 2018
Amended claims with annotations
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Nov 23, 2018
Claims
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Nov 23, 2018
Letter accompanying subsequently filed items
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Nov 23, 2018
Jul 24, 2018
Annex to the communication
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Jul 24, 2018
Communication from the Examining Division
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Jul 16, 2018
Examination started
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Oct 12, 2016
(Electronic) Receipt
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Oct 12, 2016
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Amended claims with annotations
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Oct 12, 2016
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Oct 12, 2016
Letter accompanying subsequently filed items
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European search opinion
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Mar 15, 2016
Information on Search Strategy
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Mar 15, 2016
Supplementary European search report
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Feb 19, 2016
Search started
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Feb 18, 2016
Submission concerning representation
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Mar 4, 2015
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Communication to designated inventor
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Jan 21, 2015
Communication to designated inventor
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Dec 18, 2014
(Electronic) Receipt
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Dec 18, 2014
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Annex
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Dec 18, 2014
Request for entry into the European phase
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Dec 8, 2014
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Notification of the recording of a change
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Oct 6, 2014
Information on entry into European phase
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Dec 19, 2013
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Nov 28, 2013
Copy of the international search report
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Nov 28, 2013
Published international application - A1
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