Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Uninterruptible power supplies

Uninterruptible power supplies

US Patent 4400624 · Granted Aug 23, 1983

Estimated economic value: $12,891,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Feeder monitor arrangement for stored program controlled rectifier plant1989
Option protocol arrangement for stored program rectifier controller1986
Uninterruptible power supplies1984
Common control with frequency drift compensation for a plurality of switching re1981
Circuit control to limit power drain of auxiliary power supply in UPS system1980
Phase control arrangement to limit output signal transients during power source 1980
Frequency generator with a controlled limit on frequency deviation from a synchr1980
Alarm circuit to detect shorting of periodic signal source1980