Patent No. EP3513926 (titled "Shaving Appliance Including A Notification Circuit For Communicating Shave Stroke Direction Information") was filed by The Gillette on Jan 15, 2019. The application was issued on Jul 9, 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 |
|---|---|---|
| BIC VIOLEX | Mar 23, 2022 | PETERREINS SCHLEY |
| EDGEWELL PERSONAL CARE BRANDS | Mar 23, 2022 | DOMPATENT VON KREISLER SELTING WERNER |
| EDGEWELL PERSONAL CARE BRANDS | Mar 23, 2022 | DOMPATENT VON PATENT UND RECHTSANWALTEN |
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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