Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Controller for a coin telephone set

Controller for a coin telephone set

US Patent 4567325 · Granted Jan 28, 1986

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Machine learning models using data type variables and time window variables2025
Systems and methods for filtering and computation using tunneling transistors2017
Devices for utilizing symFETs for low-power information processing2016
System and method for establishing local control of a space conditioning load du2015
Polytrimethylene ether glycol or copolymers thereof having improved color and pr2013
System and method for establishing local control of a space conditioning load du2013
Random access memory architecture including midpoint reference2012
Method and system for local load control2010
Silicon-containing polytrimethylene homo- or copolyether composition2010
HVAC communication system2010
Processes for producing random polytrimethylene ether ester2010
Silicon-containing polytrimethylene homo- for copolyether composition2009