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The patent EP3043797 was granted to Merck Sharp & Dohme on Apr 8, 2020. The application was filed on Sep 9, 2014 under application number EP14842042A. 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 |
|---|---|---|---|
| LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB | Dec 21, 2020 | LEDERER & KELLER PATENTANWALTE PARTNERSCHAFT MBB | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| INTERNATIONAL-SEARCH-REPORT | US2013065874 |
| SEARCH | US2013065874 |
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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Description
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Annexes in respect of a client data request
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General authorisation
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Letter concerning fees and payments
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Filing of the translations of the claims
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French translation of claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Claims
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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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Communication from the Examining Division
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Examination started
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Letter accompanying subsequently filed items
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Search started
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Letter accompanying subsequently filed items
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Communication to designated inventor
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Communication to designated inventor
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Request for entry into the European phase
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Information on entry into European phase
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Copy of the international search report
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Notification of the recording of a change
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Published international application - A2
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