Patent No. EP3553174 (titled "Rna-Guided Human Genome Engineering") was filed by President And Fellows OF Harvard College on Dec 16, 2013. The application was issued on Apr 30, 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 |
|---|---|---|
| SCHLICH | Jan 30, 2026 | SCHLICH |
| VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB | Dec 30, 2025 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
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