Patent No. EP2768964 (titled "Recombinant Non-Pathogenic Marek'S Disease Virus Constructs Encoding Infectious Laryngotracheitis Virus And Newcastle Disease Virus Antigens") was filed by Intervet on Oct 19, 2012. The application was issued on Oct 10, 2018.

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 |
|---|---|---|
| BOEHRINGER INGELHEIM ANIMAL HEALTH USA | Jul 9, 2019 | D YOUNG |
| HRING | Jul 9, 2019 | D YOUNG |
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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