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The patent EP3612737 was granted to Hilti on Feb 22, 2023. The application was filed on Apr 18, 2018 under application number EP18718157A. The patent is currently recorded with a legal status of "Granted And Under Opposition".
A fastening method and system that achieves high holding force in a blind hole by displacing substrate material in the depth direction as the fastener is driven in, resulting in a weld at the peripheral surface. The method involves producing a blind hole with a diameter smaller than the fastener's face diameter, and driving the fastener into the hole while displacing substrate material. The resulting heat causes the fastener to weld to the substrate at the peripheral surface. The system comprises a substrate and a fastener with a shank that displaces substrate material as it is driven into the hole, resulting in a weld at the peripheral surface.

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 |
|---|---|---|---|
| LOCKE INDUSTRIAL TECHNOLOGY TIANJIN | Nov 17, 2023 | NEDERLANDSCH OCTROOIBUREAU | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP2157322 |
| INTERNATIONAL-SEARCH-REPORT | JP2010190342 |
| INTERNATIONAL-SEARCH-REPORT | JPS5830510 |
| OPPOSITION | DE102004059625 |
| OPPOSITION | DE102015112679 |
| OPPOSITION | DE1625383 |
| OPPOSITION | DE20209675U |
| OPPOSITION | EP0337813 |
| OPPOSITION | EP2157322 |
| OPPOSITION | JP2010190342 |
| OPPOSITION | JPS5830510 |
| OPPOSITION | KR101543167B |
| OPPOSITION | KR101660801B |
| OPPOSITION | US2008101857 |
| OPPOSITION | US2016038993 |
| OPPOSITION | US2020049179 |
| OPPOSITION | WO2006061203 |
| OPPOSITION | WO2016124647 |
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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Description
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Decision to grant a European patent
Search/Exam
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English translation of the claims
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French translation of claims
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Letter accompanying subsequently filed items
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Priority search results copy provided by EPO
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Request for entry into the European phase
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PCTRO
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Abstract
PCTRO
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Claims
PCTRO
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Description
PCTRO
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PCTRO
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