On January 21 2016 BTG filed a provisional patent application “Second Generation Superconducting Filaments and Cable”.
The application abstract:
A high-temperature superconducting filament and cable, and a method for manufacturing same. The substrate used to grow the superconducting layer is removed, and the exfoliated superconducting layer is coated with a protective layer, and then sliced into narrow strips. The strips are thereafter encapsulated with a conductive metal to provide a high-temperature superconducting filament. The filaments may be bundled together to provide a high-temperature superconducting cable. The cable assembly may be wrapped with conductive metal foil to provide enhanced electrical and mechanical stability.