Patent No. EP3559394 (titled "System And Method For Providing Drilling Fluid For Earth Drilling") was filed by Tracto Technik on Dec 21, 2017. The application was issued on Jan 24, 2024.

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 |
|---|---|---|
| AT BORETEC INH ANDREAS TIGGES EK | Oct 22, 2024 | FRITZ PATENT UND RECHTSANWALTE PARTMBB |
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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