Patent No. EP3532689 (titled "Opening And Closing System Having An Ejection Apparatus For An Item Of Furniture, And Operating Method For An Opening And Closing System") was filed by Hettich ONI on Oct 26, 2017. The application was issued on Jul 8, 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 |
|---|---|---|
| DONGTAI HARDWARE PRECISION HONG KONG | Apr 8, 2021 | HABERMANN INTELLECTUAL VON PATENTANWALTEN |
| DONGTAI HARDWARE PRECISION HONG KONG | Apr 8, 2021 | HABERMANN PARTNERSCHAFT VON PATENTANWALTEN 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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