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The patent EP2266123 was granted to Powermat on Sep 11, 2024. The application was filed on Dec 18, 2008 under application number EP08873468A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".
Inductive power transfer system for wireless power delivery that eliminates the need for conductive connections between the power source and load. The system employs a unique architecture where the power source and load are connected through a resonant inductor pair, with the power source generating a periodic low-energy power pulse. This pulse is transmitted through the resonant inductor to the load, where it induces a controlled current flow. The system incorporates a passive transmission lock mechanism that automatically detects the presence of the load coil and initiates the power transfer process. The power transfer process is controlled by a separate set of switching signals that are drawn from the power source terminals, enabling efficient and reliable wireless power transfer.
Latest UPC cases involving this patent.
| Case Number | Filing Date | Plaintiff | Proceeding Type |
|---|---|---|---|
| UPC_CFI_644/2025 | Jul 11, 2025 | Anker Innovations, Anker Innovations Deutschland | Counter Claim For Revocation |
| UPC_CFI_399/2025 | May 6, 2025 | Powermat | Infringement |
| UPC_CFI_185/2025 | Mar 28, 2025 | Powermat | Infringement |

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 | Opposition Status |
|---|---|---|---|
| BURY | Jul 10, 2019 | GERSTEIN | ADMISSIBLE |
| IKEA SUPPLY | Jul 9, 2019 | INDUSTRIPATENT I VAXJO | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP1689071 |
| DESCRIPTION | US2008079392 |
| DESCRIPTION | US5991170 |
| INTERNATIONAL-SEARCH-REPORT | US2007210889 |
| INTERNATIONAL-SEARCH-REPORT | US2007279002 |
| INTERNATIONAL-SEARCH-REPORT | US6803744 |
| OPPOSITION | DE2634303 |
| OPPOSITION | EP0115747 |
| OPPOSITION | EP0533247 |
| OPPOSITION | EP0982831 |
| OPPOSITION | US2002154518 |
| OPPOSITION | US2003151930 |
| OPPOSITION | US2004145342 |
| OPPOSITION | US2007042729 |
| OPPOSITION | US2008079392 |
| OPPOSITION | US5455466 |
| OPPOSITION | US5991170 |
| OPPOSITION | US6587358 |
| OPPOSITION | US6912137 |
| OPPOSITION | WO0054387 |
| OPPOSITION | WO2007054259 |
| OPPOSITION | WO2008038203 |
| SEARCH | EP1689071 |
| SEARCH | US4942352 |
| SEARCH | US5991170 |
| SEARCH | US6587358 |
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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Published international application - A2
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