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Class Information
Number: 505/867
Name: Superconductor technology: apparatus, material, process > Apparatus, per se, device, per se, or process of making or operating same > Electric power conversion system: (class 363)
Description: Subject matter including means to perform a sequence or combination of at least two of the operations of, (a) current conversion, (b) phase conversion, or (c) frequency conversion.

Sub-classes under this class:

Class Number Class Name Patents
505/868 Current conversion: (class 363/14) 7

Patents under this class:

Patent Number Title Of Patent Date Issued
5329440 Device for converting a very-low-amplitude steady voltage signal into an alternating voltage signal Jul. 12, 1994
5219831 Superconductive photoconductive-substance of the La-Cu-O system and a method for producing the same Jun. 15, 1993
4195334 High-voltage DC transmission system and method Mar. 25, 1980

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