Patent No. EP3363811 (titled "Method For Producing Fusion Protein Having Igg Fc Domain") was filed by Alteogen on Oct 14, 2016. The application was issued on Apr 19, 2023.

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 |
|---|---|---|
| BOGUTZKI | Jan 18, 2024 | KLUNKER PATENTANWALTE PARTG MBB |
| BOULT WADE TENNANT | Jan 18, 2024 | BOULT WADE TENNANT |
| JAMES POOLE | Jan 18, 2024 | CARPMAELS & RANSFORD |
| WUESTHOFF & WUESTHOFF PATENTANWALTE PARTG MBB | Jan 17, 2024 | WICHMANN |
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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