Patent No. EP1998831 (titled "Improved Autoinjector Supporting The Syringe At The Front") was filed by SHL Medical on Jan 17, 2007. The application was issued on Oct 22, 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 |
|---|---|---|
| EISENFUHR SPEISER | Jul 28, 2021 | EISENFUHR SPEISER |
| SHL MEDICAL | Jul 16, 2021 | VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBB |
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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