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Class Information
Number: 307/64
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Substitute or emergency source
Description: Subject matter having substitute or emergency sources of electric energy.

Sub-classes under this class:

Class Number Class Name Patents
307/68 Dynamoelectric 80
307/65 Plural substitute sources 232
307/66 Storage battery or accumulator 1,402

Patents under this class:

Patent Number Title Of Patent Date Issued
8713332 System and method of supplying an electrical system with direct current Apr. 29, 2014
8710699 Dual use photovoltaic system Apr. 29, 2014
8710698 Redundant power delivery Apr. 29, 2014
8704493 Battery system Apr. 22, 2014
8686594 Method and system for establishing a power feed to systems during operation Apr. 1, 2014
8686593 Systems and methods of power device lighting Apr. 1, 2014
8686592 System and method for combining the outputs of multiple, disparate types of power sources Apr. 1, 2014
8670836 Medical infusion pump with power source voltage logging and method for logging a power source voltage in a medical infusion pump Mar. 11, 2014
8653884 Semiconductor device Feb. 18, 2014
8653796 Portable electronic device power manager with current Limit feedback control loop modification for stabilizing an external power supply Feb. 18, 2014
8648495 Smart-grid combination power system Feb. 11, 2014
8648494 Uninterruptible power supply and method of energy saving thereof Feb. 11, 2014
8643215 Mobile auxilliary power system for electrical distribution and transmission systems Feb. 4, 2014
8639953 System and method for gathering information using a power device wherein information is associated with at least one external load Jan. 28, 2014
8638061 Hybrid energy storage system, renewable energy system including the storage system, and method of using same Jan. 28, 2014
8638008 380 volt direct current power distribution system for information and communication technology systems and facilities Jan. 28, 2014
8638007 Converter device and uninterruptible power supply provided with such a device Jan. 28, 2014
8624433 Data center uninterruptible power distribution architecture Jan. 7, 2014
8614525 Methods and systems for operating a power generation system Dec. 24, 2013
8610438 Branch circuit monitor Dec. 17, 2013
8599580 Buck converter Dec. 3, 2013
8598723 Hybrid engine-driven power generator Dec. 3, 2013
8587929 High density uninterruptible power supplies and related systems and power distribution units Nov. 19, 2013
8587149 Electronic protection unit for automatic circuit breakers and relative process Nov. 19, 2013
8581439 Automation devices, systems, architectures, and methods including controllable transfer switches Nov. 12, 2013
8577479 Power transmitting apparatus, power receiving apparatus, power transmission method, program, and power transmission system Nov. 5, 2013
8575780 Power storage apparatus, method of operating the same, and power storage system Nov. 5, 2013
8564973 Inverter topology circuit, inversion method and inverter Oct. 22, 2013
8558711 System for testing NAC operability using backup power Oct. 15, 2013
8558408 System and method for providing redundant power to a device Oct. 15, 2013
8552590 Energy management system and grid-connected energy storage system including the energy management system Oct. 8, 2013
8552589 Digital control method for operating the UPS systems in parallel Oct. 8, 2013
8552588 Battery charging coaction and output system with current limit supply Oct. 8, 2013
8547107 Self-diagnostic apparatus for electrical storage system Oct. 1, 2013
8546977 Voltage based switching of a power supply system current Oct. 1, 2013
8545039 Lamp base with upgradeable recharging port and method Oct. 1, 2013
8534400 Electric vehicle and method of control for active auxiliary battery depletion Sep. 17, 2013
8519567 Method and apparatus for maintaining uninterruptible power supplies Aug. 27, 2013
8519566 Remote switch sensing in lighting devices Aug. 27, 2013
8508075 Electronic device and electronic system Aug. 13, 2013
8508072 Standby wake-up circuit for electronic device Aug. 13, 2013
8492928 AC-to-DC conversion Jul. 23, 2013
8487473 Hierarchical power smoothing Jul. 16, 2013
8482153 Systems for optimized solar power inversion Jul. 9, 2013
8476787 System and method for changing power states of a power device Jul. 2, 2013
8471659 Automatic transfer switch having an interlock arrangement Jun. 25, 2013
8471405 High efficiency standby power generation Jun. 25, 2013
8471403 Power supply arrangement of an elevator Jun. 25, 2013
8467985 Automated synchronization of data between electrical grids Jun. 18, 2013
8467836 Method and apparatus for transmitting data in wireless communication system Jun. 18, 2013

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