Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Microprocessor controlled telephone set

Microprocessor controlled telephone set

US Patent 4298775 · Granted Nov 3, 1981

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Human-computer interface device and system2019
Human-computer interface device and system2019
Face plate for a receiver1996
Safety cut-off device for piping systems and the like1996
Noncontact conveyor feeder system1991
Impeller1986
Solar collector1985
Solar collector1982