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Hand-Held Three-Dimensional Drawing Device

Patent No. EP2928672 (titled "Hand-Held Three-Dimensional Drawing Device") was filed by Wobbleworks on Sep 20, 2013. The application was issued on Mar 30, 2022.

Patent Summary

A hand-held device for extruding material to form 2D and 3D objects without computer-aided design files. The device includes a housing, a nozzle assembly, a motor, and a gear train that advances the feed stock through precise mechanical control. A cooling system, including a fan and cooling ports, rapidly solidifies the extruded material, enabling three-dimensional construction without support structures.

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Patent Oppositions (3)

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
GUANG ZHOU SHU YU KE JI YOU XIAN GONG SI KRETRUMMay 4, 2026SUN
MYFIRST TECH ASIA PTEApr 30, 2024KELTIE
SHENZHEN XINPINYI E COMMERCEJan 3, 2023PATENTANWALTE GIERLICH & PISCHITZIS PARTNERSCHAFT MBB

Dossier Documents

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.

  • Date

    Description

EP2928672

WOBBLEWORKS
Application Number
EP13861105A
Filing Date
Sep 20, 2013
Status
Granted And Under Opposition
Feb 25, 2022
Publication Date
Mar 30, 2022
External Links
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