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The patent EP3701220 was granted to Q Tech on Aug 30, 2023. The application was filed on Oct 26, 2018 under application number EP18804706A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
A method and apparatus for measuring straightness errors of elongated-shape elements, such as metal bars, during production. The apparatus uses a static supporting system with multiple bearing elements to maintain the bar in a stable position, while a first detecting system captures the bar's 3D geometry and a second detecting system measures the forces acting on the bar. The apparatus calculates the bar's theoretical shape in the absence of gravitational forces and supporting constraints, and determines the straightness error as a deviation from this theoretical shape.

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 |
|---|---|---|---|
| MSG MASCHINENBAU | May 29, 2024 | HOFFMANN EITLE | ADMISSIBLE |
| MSG MASCHINENBAU | May 29, 2024 | KONIG SZYNKA TILMANN VON RENESSE PATENTANWALTE PARTNERSCHAFT MBB DUSSELDORF | ADMISSIBLE |
| RDE | May 29, 2024 | FAGGIONI | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP3637047 |
| INTERNATIONAL-SEARCH-REPORT | EP3093611 |
| INTERNATIONAL-SEARCH-REPORT | JP2005300298 |
| INTERNATIONAL-SEARCH-REPORT | US2017284798 |
| OPPOSITION | DE102011119658 |
| OPPOSITION | EP0908698 |
| OPPOSITION | EP3093611 |
| OPPOSITION | EP3225320 |
| OPPOSITION | EP3637047 |
| OPPOSITION | US2004184650 |
| OPPOSITION | US2017284798 |
| OPPOSITION | WO2006138220 |
| OPPOSITION | WO2017168324 |
| OPPOSITION | WO9634251 |
| OTHER | EP3093611 |
| OTHER | EP3225320 |
| OTHER | EP3637047 |
| OTHER | JP2005300298 |
| OTHER | WO2017168324 |
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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Decision to grant a European patent
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Jul 19, 2023
(Electronic) Receipt
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Jul 19, 2023
Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Observations by third parties
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Patent document filed by a Third party
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(Electronic) Receipt
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Claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Observations by third parties
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Patent document filed by a Third party
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Intention to grant (signatures)
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Amended claims with annotations
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Claims
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Letter accompanying subsequently filed items
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Annex to the communication
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Examination started
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Request for entry into the European phase
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Written opinion
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Notification of the recording of a change
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Copy of the international search report
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Published international application - A1
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ISR: cited documents
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Priority search results copy provided by EPO
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