Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Payphone having master and slave modes

Payphone having master and slave modes

US Patent 5222122 · Granted Jun 22, 1993

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Memory controller with speculative precursor commands2025
Self refresh state machine mop array2022
Methods of deploying a server2020
Memory controller with flexible address decoding2019
Self refresh state machine MOP array2019
Methods of deploying a server2016
Telecommunications patching system that facilitates detection and identification2015
Intelligent patch panel sensor modules having infrared emitters and sensors for 2014
Patch panel cable information detection systems and methods2014
Assembly and system of datacommunication cables and connectors2013
Methods, systems and computer program products for provisioning VLAN services in2013
Methods and systems for monitoring changes made to a network that alter the serv2013