Patent No. EP3527721 (titled "Road Finisher With Output Adjusters For Electrical Insert Heating Devices") was filed by Joseph Vgele on Feb 19, 2018. The application was issued on Jun 10, 2020.

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 |
|---|---|---|
| VOLVO CONSTRUCTION EQUIPMENT ABG ALLGEMEINE BAUMSCHINEN GESELLSCHAFT | Mar 10, 2021 | EISENFUHR SPEISER |
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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