Patent No. EP2268308 (titled "Vaccine For Protection Against Lawsonia Intracellulars") was filed by Intervet on Apr 16, 2009. The application was issued on May 6, 2026.

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 VETMEDICA | Dec 14, 2018 | VOSSIUS & PARTNER |
| BOEHRINGER INGELHEIM | Dec 14, 2018 | VOSSIUS & PARTNER |
| BOEHRINGER INGELHEIM | Dec 14, 2018 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
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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