MUMBAI, India, Sept. 28 -- Intellectual Property India has published a patent application (202647106211 A) filed by Shell Internationale Research Maatschappij B. V. on September 03, 2026, for Dual Layer Mineral Insulated Cable And Method For Heating A Substance.
Inventors include Arora, Dhruv; and Burns, David Booth.
The application for the patent was published on September 25, 2026, under issue no. 39/2026.
Abstract: Implementations of the disclosed subject matter provide a mineral insulated cable. The mineral insulated cable may include an elongated core on a central axis of the mineral insulated cable. The elongated core may include: a resistive wire made of a metal material having a first resistivity of at least 0.1 µO·m at 20°C helically coiled to form a helix with pitch of 0.5mm – 20 mm around a semi-conducting material formed as a cylinder placed along the central axis of the helix. The semi- conducting material may be in electrical contact with the resistive wire and may have a first electric bandgap and a second resistivity. The mineral insulated cable may also include: an electrically insulating layer concentrically enveloping around the elongated core, comprising a mineral material with a second electric bandgap; and a metallic outer sheath concentrically enveloping around the electrically insulating layer, wherein the first electric bandgap is smaller than the second electric bandgap.
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