Patent No. EP2504332 (titled "An Amorphous And A Crystalline Form Of Genz 112638 Hemitartrate As Inhibitor Of Glucosylceramide Synthase") was filed by Genzyme on Nov 24, 2010. The application was issued on Mar 17, 2021.

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 |
|---|---|---|
| SANDOZ | Feb 27, 2015 | ELKINGTON AND FIFE |
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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