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Drill Rod Or Adaptor With Strengthened Spigot Coupling

Patent No. EP3298229 (titled "Drill Rod Or Adaptor With Strengthened Spigot Coupling") was filed by Sandvik on May 19, 2016. The application was issued on Oct 14, 2020.

Patent Summary

A drill string component with a male spigot coupling end that minimizes stress and failure at the threaded region. The component features a non-threaded shank section with a predetermined minimum length relative to the threaded section diameter, which enhances resistance to bending forces and shock wave transmission during drilling operations.

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Patent Oppositions (2)

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.

CompanyOpposition DateRepresentative
ROCKMOREJul 14, 2021WITTE
ROBITJul 8, 2021BOCO

Dossier Documents

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EP3298229

SANDVIK
Application Number
EP16725462A
Filing Date
May 19, 2016
Status
Granted And Under Opposition
Sep 11, 2020
Publication Date
Oct 14, 2020
External Links
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