Patent No. EP2152237 (titled "Novel Pharmaceutical Composition") was filed by Glaxosmithkline on Aug 1, 2007. The application was issued on Dec 30, 2015.

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 |
|---|---|---|
| GALENICUM HEALTH SLU | Sep 30, 2016 | GALENICUM HEALTH SLU |
| GENERICS UK | Sep 30, 2016 | ELKINGTON AND FIFE |
| TEVA PHARMACEUTICAL INDUSTRIES LTD | Sep 29, 2016 | D YOUNG |
| ALFRED E TIEFENBACHER | Sep 27, 2016 | PRINZ & PARTNER MBB |
| ZBM PATENTS | Sep 27, 2016 | - |
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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