Patent No. EP1450632 (titled "Cigarette Paper With Reduced Carbon Monoxide Delivery") was filed by Schweitzer Mauduit on Oct 18, 2002. The application was issued on Nov 18, 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 |
|---|---|---|
| JULIUS GLATZ GMBH | Aug 18, 2016 | SCHON |
| BRITISH AMERICAN TOBACCO | Aug 18, 2016 | GILL |
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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