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Measurement and recording apparatus and system
Patent #: 4201908
Issued on: 05/06/1980
Inventor: Johnson , et al.
Transmitting signals over alternating current power networks
Patent #: 4307380
Issued on: 12/22/1981
Inventor: Gander
Receiver for a distribution network power line carrier communication system
Patent #: 4355303
Issued on: 10/19/1982
Inventor: Phillips , et al.
Appliance control system
Patent #: 4418333
Issued on: 11/29/1983
Inventor: Schwarzbach , et al.
Electric utility communication system with field installation terminal and load management terminal with remotely assignable unique address
Patent #: 4467314
Issued on: 08/21/1984
Inventor: Weikel , et al.
Universal interface unit
Patent #: 4500933
Issued on: 02/19/1985
Inventor: Chan
Power line carrier FSK data system
Patent #: 4556866
Issued on: 12/03/1985
Inventor: Gorecki
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Building intelligence system
Patent #: 4567557
Issued on: 01/28/1986
Inventor: Burns
Multi-function control interface circuit
Patent #: 4623888
Issued on: 11/18/1986
Inventor: Waring
Electrical appliance control
Patent #: 4628440
Issued on: 12/09/1986
Inventor: Thompson
Apparatus for receiving low level digital signals transmitted over power lines
Patent #: 4633218
Issued on: 12/30/1986
Inventor: Palsgrove , et al.
Electrical appliance control
Patent #: 4638299
Issued on: 01/20/1987
Inventor: Campbell
System for carrying out spread spectrum communication through an electric power line
Patent #: 4641322
Issued on: 02/03/1987
Inventor: Hasegawa
Method and apparatus for coupling transceiver to power line carrier system
Patent #: 4697166
Issued on: 09/29/1987
Inventor: Warnagiris , et al.
System for remotely adjusting a parameter of an electrical circuit within an enclosure
Patent #: 4704607
Issued on: 11/03/1987
Inventor: Teather , et al.
Noise reduction in signal transmission system over building power distribution wiring
Patent #: 4745392
Issued on: 05/17/1988
Inventor: Ise , et al.
Apparatus for transmitting and receiving a power line
Patent #: 4746897
Issued on: 05/24/1988
Inventor: Shuey
Security control system
Patent #: 4755792
Issued on: 07/05/1988
Inventor: Pezzolo , et al.
Process and method for wide band transmission, particularly for data transmission over an electricity distribution network
Patent #: 4763103
Issued on: 08/09/1988
Inventor: Galula , et al.
Power line communication system
Patent #: 4772870
Issued on: 09/20/1988
Inventor: Reyes
Method and apparatus for remote measurement
Patent #: 4783748
Issued on: 11/08/1988
Inventor: Swarztrauber , et al.
Logic interchange system
Patent #: 4808994
Issued on: 02/28/1989
Inventor: Riley
Method for transmitting data via the lines of a power supply system
Patent #: 4809296
Issued on: 02/28/1989
Inventor: Braun , et al.
Power line communication apparatus
Patent #: 4815106
Issued on: 03/21/1989
Inventor: Propp , et al.
Electronic control system for controlling several remote devices
Patent #: 4818993
Issued on: 04/04/1989
Inventor: Stockel
Mail processing system with multiple work stations
Patent #: 4837701
Issued on: 06/06/1989
Inventor: Sansone , et al.
Arrangement comprising a system providing movement, processing and/or production
Patent #: 4841450
Issued on: 06/20/1989
Inventor: Fredriksson
Method for storing a second number as a command address of a first peripheral device and a third number as a command address of a second peripheral device
Patent #: 4912627
Issued on: 03/27/1990
Inventor: Ashkin, et al.
Power management and automation system
Patent #: 4964058
Issued on: 10/16/1990
Inventor: Brown, Jr.
System for synchronous measurement in a digital computer network
Patent #: 4982185
Issued on: 01/01/1991
Inventor: Holmberg, et al.
Simultaneous data and electric power transmitting/receiving system
Patent #: 5003457
Issued on: 03/26/1991
Inventor: Ikei, et al.
Method and apparatus for transmitting and receiving television program information
Patent #: 5038211
Issued on: 08/06/1991
Inventor: Hallenbeck
Expandable home automation system Patent #: 5086385
Issued on: 02/04/1992
Inventor: Launey, et al.
November 22, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
