Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Emergency D.C. power supply with the emergency state being indicated by polarity reversal

Emergency D.C. power supply with the emergency state being indicated by polarity reversal

US Patent 4825349 · Granted Apr 25, 1989

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

TDMA point-to-multipoint transmission network with a multiframe which includes a1998
Opto-electronic transducer device for optical link termination equipment and app1994
Method for allocating time slots for transmission in a half-duplex time division1994
Method for determining the transmission time between remote and central terminal1994
Timing recovery circuit for synchronous data transmission using combination of L1986