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Class Information
Number: 307/66
Name: Electrical transmission or interconnection systems > Plural supply circuits or sources > Substitute or emergency source > Storage battery or accumulator
Description: Subject matter in which a substitute or emergency source is a storage battery.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7432617 |
Uninterruptible power system |
Oct. 7, 2008 |
| 7432616 |
Inverter device |
Oct. 7, 2008 |
| 7420295 |
Power unit for conveyance and conveyance provided with the power unit |
Sep. 2, 2008 |
| 7411315 |
Battery communication system |
Aug. 12, 2008 |
| 7391159 |
Lighting device with multiple power sources and multiple modes of operation |
Jun. 24, 2008 |
| 7388508 |
Uninterruptible power supply controller and method |
Jun. 17, 2008 |
| 7388348 |
Portable solar energy system |
Jun. 17, 2008 |
| 7385374 |
Adaptive power system |
Jun. 10, 2008 |
| 7372177 |
Control system, method and product for uninterruptible power supply |
May. 13, 2008 |
| 7362601 |
Power supply device |
Apr. 22, 2008 |
| 7355303 |
Constant voltage discharge device |
Apr. 8, 2008 |
| 7352578 |
Fuel cell system with inverter and phase change material |
Apr. 1, 2008 |
| 7352087 |
Power system configuration |
Apr. 1, 2008 |
| 7352083 |
Apparatus for and method of UPS operation |
Apr. 1, 2008 |
| 7348759 |
Electronic apparatus, electronic apparatus system, and operation mode switching method |
Mar. 25, 2008 |
| 7336978 |
Mobile device having an overcurrent cutoff function |
Feb. 26, 2008 |
| 7336005 |
System and method for brownout protection of a FET based battery switch |
Feb. 26, 2008 |
| 7336004 |
Topologies for using multiple energy sources for power conversions |
Feb. 26, 2008 |
| 7321174 |
Apparatus, system, and method for maximizing power system holdup time during loss of input power |
Jan. 22, 2008 |
| 7312539 |
Output suppressing method of a plurality of dispersed power sources and dispersed power source managing system |
Dec. 25, 2007 |
| 7307360 |
Uninterruptible power supplies |
Dec. 11, 2007 |
| 7301249 |
Battery connect/disconnect for an uninterruptible power supply |
Nov. 27, 2007 |
| 7301248 |
Control method for voltage boosting circuit |
Nov. 27, 2007 |
| 7298114 |
Nickel hydrogen/nickel cadmium battery charger with the function of emergency power supply |
Nov. 20, 2007 |
| 7294940 |
Power over ethernet battery backup |
Nov. 13, 2007 |
| 7288855 |
Methods and apparatus for providing uninterruptible power |
Oct. 30, 2007 |
| 7282813 |
AC power backfeed protection based on phase shift |
Oct. 16, 2007 |
| 7259478 |
Backup power supply for telephone set |
Aug. 21, 2007 |
| 7259476 |
DC and AC uninterruptible power supply |
Aug. 21, 2007 |
| 7250231 |
Auxiliary fuel cell system |
Jul. 31, 2007 |
| 7245469 |
DC backup power supply device and method for diagnosing the same |
Jul. 17, 2007 |
| 7239044 |
Enhanced distributed energy resource system |
Jul. 3, 2007 |
| 7239043 |
Power conversion apparatus and methods using an adaptive waveform reference |
Jul. 3, 2007 |
| 7233129 |
Generator with utility fault ride-through capability |
Jun. 19, 2007 |
| 7230353 |
Charging circuit in uninterruptible power supply system |
Jun. 12, 2007 |
| 7228444 |
System and method for preserving state data of a personal computer in a standby state in the event of an AC power failure |
Jun. 5, 2007 |
| 7227282 |
Alternative alternating current power supply |
Jun. 5, 2007 |
| 7224131 |
High efficiency lighting system |
May. 29, 2007 |
| 7220014 |
Quick mounting system for emergency lighting device |
May. 22, 2007 |
| 7218056 |
Lighting device with multiple power sources and multiple modes of operation |
May. 15, 2007 |
| 7216246 |
Electronic apparatus and supply power setting method for the apparatus |
May. 8, 2007 |
| 7208894 |
Electric vehicle motor and control system with high efficiency regeneration |
Apr. 24, 2007 |
| 7202576 |
Uninterruptible power supply systems and enclosures |
Apr. 10, 2007 |
| 7199550 |
Method of operating a secondary battery system having first and second tanks for reserving electrolytes |
Apr. 3, 2007 |
| 7199489 |
Battery communication system |
Apr. 3, 2007 |
| 7166934 |
Package-based voltage control |
Jan. 23, 2007 |
| 7166932 |
Power circuit |
Jan. 23, 2007 |
| 7166931 |
Uninterruptible power supply apparatus |
Jan. 23, 2007 |
| 7166930 |
Uninterruptible power supply apparatus and methods using a display with variable backlighting |
Jan. 23, 2007 |
| 7157810 |
Backup power supply |
Jan. 2, 2007 |
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