Patent No. EP3182235 (titled "Method And Industrial Control For Calling A Function Of A Control Program By Means Of An Opc Ua Call") was filed by Siemens on Dec 18, 2015. The application was issued on Mar 27, 2019.

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 |
|---|---|---|
| GROSSE VON HIRSCHHAUSEN PATENTDIENST | Dec 20, 2019 | WITTMER |
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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