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Robert J. Plonka
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Quincy, IL, US
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Patents Grants
last 30 patents
Information
Patent Grant
Sharp-tuned filter-combiner for combining adjacent TV channels
Patent number
7,224,400
Issue date
May 29, 2007
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Sharply tuned bandpass filter
Patent number
6,933,986
Issue date
Aug 23, 2005
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Combining adjacent TV channels for transmission by a common antenna
Patent number
6,549,242
Issue date
Apr 15, 2003
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Adaptive control of RF receiving antenna system for digital television
Patent number
6,545,648
Issue date
Apr 8, 2003
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast transmission system with sampling and correction arrangem...
Patent number
6,519,010
Issue date
Feb 11, 2003
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System for correcting an aural carrier signal
Patent number
6,515,711
Issue date
Feb 4, 2003
Harris Corporation
David Simon Dassonville
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
RF receiving antenna system
Patent number
6,483,477
Issue date
Nov 19, 2002
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast transmission system with distributed correction
Patent number
6,335,767
Issue date
Jan 1, 2002
Harris Corporation
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for transmitting advanced television signals
Patent number
6,335,766
Issue date
Jan 1, 2002
Harris Corporation
Ed Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Broadcast transmission system with sampling and correction arrangem...
Patent number
6,281,936
Issue date
Aug 28, 2001
Harris Corporation
Edwin Ray Twitchell
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
RF receiving antenna system
Patent number
6,172,652
Issue date
Jan 9, 2001
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Combining NTSC visual and aural signals with DTV signals
Patent number
6,166,774
Issue date
Dec 26, 2000
Harris Corporation
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
N-way power combiner/divider
Patent number
5,164,689
Issue date
Nov 17, 1992
Harris Corporation
Robert J. Plonka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
N-way power combiner having N reject loads with a common heat sink
Patent number
5,111,166
Issue date
May 5, 1992
Harris Corporation
Robert J. Plonka
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Sharply tuned bandpass filter
Publication number
20030227575
Publication date
Dec 11, 2003
Robert J. Plonka
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Sharp-tuned filter-combiner for combining adjacent tv channels
Publication number
20030038874
Publication date
Feb 27, 2003
Robert J. Plonka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Broadcast transmission system with sampling and correction arrangem...
Publication number
20010038423
Publication date
Nov 8, 2001
Edwin Ray Twitchell
H04 - ELECTRIC COMMUNICATION TECHNIQUE