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The patent EP2183608 was granted to Techimp on Apr 6, 2022. The application was filed on Jan 31, 2008 under application number EP08709950A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".
An instrument and method for detecting partial electrical discharges in high-voltage systems, comprising a broad-band acquisition stage and a narrow-band processing stage. The broad-band stage captures discharge impulses with a detection bandwidth of at least 2 MHz, while the narrow-band stage filters the signal to a predetermined bandwidth of less than 500 kHz. The filtered signal is then used to derive a calibration factor for estimating the charge transfer associated with the discharges.

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 |
|---|---|---|---|
| OMICRON ENERGY SOLUTIONS | Mar 6, 2019 | SCHWARZ | - |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP0813282 |
| DESCRIPTION | US6313640 |
| INTERNATIONAL-SEARCH-REPORT | EP0813282 |
| INTERNATIONAL-SEARCH-REPORT | US6313640 |
| INTERNATIONAL-SEARCH-REPORT | WO2006122415 |
| OPPOSITION | EP1094323 |
| OPPOSITION | US6313640 |
| OPPOSITION | WO2006122415 |
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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French translation of claims
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Annexes in respect of a client data request
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Amendments received before examination
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Request for entry into the European phase
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Notification of the recording of a change
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Information on entry into European phase
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