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Class Information
Number: 307/257
Name: Electrical transmission or interconnection systems >

Sub-classes under this class:

Class Number Class Name Patents
307/1 Superimposed unlike currents 79
307/100 Shunting or short circuiting systems 51
307/101 Residual or remanent magnetism control 29
307/102 Stabilized, anti-hunting or antioscillation systems 63
307/103 With line drop compensation 46
307/104 Electromagnet or highly inductive systems 410
307/105 With harmonic filter or neutralizer 240
307/106 Wave form or wave shape determinative or pulse-producing systems 328
307/109 Capacitor 205
307/11 Plural load circuit systems 226
307/111 Nonresponsive-to-frequency-change systems 6
307/112 Switching systems 444
307/145 With current collection or transfer 25
307/146 Unidirectional conductor systems 32
307/147 Conductor arrangements or structure 379
307/149 Miscellaneous systems 221
307/326 Personnel safety or limit control features 281
307/400 Electrets 169
307/401 Nonlinear reactor systems (e.g., saturable) 17
307/43 Plural supply circuits or sources 449
307/650 With nonswitching means responsive to external nonelectrical condition 57
307/89 Anti-induction or coupling to other systems 61
307/9.1 Vehicle mounted systems 1,085
307/95 Anti-electrolysis 45
307/96 Intermittent regulatory interruption of system 12
307/98 Combined impedance and switch systems 61
307/DIG.1 Data transmitted over power lines 14

Patents under this class:

Patent Number Title Of Patent Date Issued

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