Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Method and apparatus for controlling the operation of a digital telephone switchboard

Method and apparatus for controlling the operation of a digital telephone switchboard

US Patent 6563814 · Granted May 13, 2003

Estimated economic value: $20,828,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and apparatus for facilitating meta search proxy bidding2025
Method and apparatus for facilitating meta search proxy bidding2024
Method and apparatus for facilitating meta search proxy bidding2022
Method and apparatus for facilitating meta search proxy bidding2020
Method for fabricating heterojunction interdigitated back contact photovoltaic c2016
ATM machine and methods with currency conversion capabilities2008
ATM machine and methods with currency conversion capabilities2007
Safety ladder scaffold2003