Patent No. EP4298016 (titled "Aircraft Having Wing Folding Mechanism") was filed by Diehl Defence on Feb 22, 2022. The application was issued on Feb 19, 2025.
Aircraft with passive folding wings that deploy from a compact configuration using an external activation device, eliminating the need for onboard propulsion or control systems. The wings are hinged to a folding bearing that provides the folding functionality, and are aligned with their axes along the longitudinal axis in the packed state. An external carrier supplies energy to operate the activation device, which moves the wings into flight mode.

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 |
|---|---|---|
| MBDA DEUTSCHLAND | Nov 7, 2025 | ISARPATENT |
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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