Patent No. EP2736731 (titled "Writing, Drawing, Painting Or Cosmetic Device Comprising A Honeycomb Body, And Method For Producing The Honeycomb Body Or The Device Comprising A Honeycomb Body") was filed by JS Staedtler on Jul 5, 2012. The application was issued on Jul 17, 2024.

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 |
|---|---|---|
| SOCIETE BIC | Dec 27, 2021 | PETERREINS SCHLEY |
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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