Gas-Insulated Medium Or High Voltage Electrical Apparatus Including Carbon Dioxide, Oxygen And Heptafluoroisobutyronitrile - EP3047491

The patent EP3047491 was granted to General Electric Technology on Dec 6, 2017. The application was originally filed on Sep 17, 2014 under application number EP14766725A. The patent is currently recorded with a legal status of "Revoked".

EP3047491

GENERAL ELECTRIC TECHNOLOGY
Application Number
EP14766725A
Filing Date
Sep 17, 2014
Status
Revoked
Apr 19, 2024
Grant Date
Dec 6, 2017
External Links
Slate, Register, Google Patents

Patent Summary

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Patent Family

Patent Oppositions (3)

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M INNOVATIVE PROPERTIESSep 5, 2018VOSSIUS & PARTNER PATENTANWALTE RECHTSANWALTE MBBADMISSIBLE
SIEMENSSep 5, 2018HOFSTETTERADMISSIBLE
ABB POWER GRIDS SWITZERLANDAug 29, 2018SCHAADADMISSIBLE

Patent Citations (27) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

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Non-Patent Literature (NPL) Citations (18) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

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OPPOSITION- T. UCHII et al., "Fundamental Research on SF6-free Gas Insulated Switchgear Adopting CO2 Gas and Its Mixtures", Proceedings of International Symposium on EcoTopia Science, ISETS07 (2007), (20070000), XP055516435-
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OPPOSITION- M. HIKITA et al., "Effect of Electrode Surface Roughness and Dielectric Coating on Breakdown Characteristics of High Pressure CO2 and N2 in a Quasi-Uniform Electric Field", IEEE Transactions on Dielectrics and Electrical Insulation, (20080200), vol. 15, no. 1, pages 243 - 250, XP011200962
OPPOSITION- HAMA H. et al., "Cross-sectional Study between SF6 and Eco-friendly Gases on Dielectric Coated Electrodes for Real-size Gas Insulated Switchgear", IEEE Transactions on Dielectrics and Electrical Insulation, (20120200), vol. 19, no. 1, pages 253 - 262, XP011447829

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