Patent No. EP4460474 (titled "A Zoned Reactor For The Reforming Of Nh3") was filed by Basf on Apr 6, 2023. The application was issued on Jun 11, 2025.

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 |
|---|---|---|
| CLARIANT | Mar 10, 2026 | CLARIANT PRODUKTE DEUTSCHLAND |
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