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Patents Grants
last 30 patents
Information
Patent Grant
Signal generator for testing radio frequency components
Patent number
5,974,362
Issue date
Oct 26, 1999
Marconi Instruments Limited
David P Owen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Equipment for testing electronic circuitry
Patent number
5,790,411
Issue date
Aug 4, 1998
Marconi Instruments Limited
Alan John Nelson
G01 - MEASURING TESTING
Information
Patent Grant
Frequency synthesizer
Patent number
5,781,600
Issue date
Jul 14, 1998
Marconi Instruments Limited
John Michael Reeve
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of and apparatus for reducing the size of a display while su...
Patent number
5,526,473
Issue date
Jun 11, 1996
Marconi Instruments Limited
Naran L. V. Patel
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information
Patent Grant
Instrument for measuring the frequency and power of a microwave signal
Patent number
5,463,310
Issue date
Oct 31, 1995
Marconi Instruments Limited
Timothy J. Pegg
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method of testing continuity of a connection between an integrated...
Patent number
5,399,975
Issue date
Mar 21, 1995
Marconi Instruments Limited
Mark A. Laing
G01 - MEASURING TESTING
Information
Patent Grant
Waveform generators using digitally generator superimposed waveforms
Patent number
5,375,065
Issue date
Dec 20, 1994
Marconi Instruments Limited
David P. Owen
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Single device under test (DUT) port common reference/matching imped...
Patent number
5,363,049
Issue date
Nov 8, 1994
Marconi Instruments Limited
Andrew G. Bullock
G01 - MEASURING TESTING
Information
Patent Grant
Microwave frequency synthesizer having selectable oscillator source...
Patent number
5,237,291
Issue date
Aug 17, 1993
Marconi Instruments Limited
George Hjipieris
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Apparatus for synthesizing a composite RF signal suitable for use a...
Patent number
5,170,486
Issue date
Dec 8, 1992
Marconi Instruments Limited
Neil E. Thomas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Variable frequency signal generator
Patent number
5,079,522
Issue date
Jan 7, 1992
Marconi Instruments Limited
David P. Owen
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Attenuator switchably coupled to transmission path and means for sw...
Patent number
5,061,909
Issue date
Oct 29, 1991
Marconi Instruments Limited
George Hjipieris
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency counter
Patent number
4,984,254
Issue date
Jan 8, 1991
Marconi Instruments Limited
Neil E. Thomas
G01 - MEASURING TESTING
Information
Patent Grant
Connector
Patent number
4,955,826
Issue date
Sep 11, 1990
Marconi Instruments Limited
Christopher M. Potter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Frequency synthesizer
Patent number
4,914,405
Issue date
Apr 3, 1990
Marconi Instruments Limited
John N. Wells
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Frequency or phase modulation
Patent number
4,870,384
Issue date
Sep 26, 1989
Marconi Instruments Limited
Neil E. Thomas
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Phase detector
Patent number
4,868,512
Issue date
Sep 19, 1989
Marconi Instruments Limited
Roger F. Bridgman
G01 - MEASURING TESTING
Information
Patent Grant
Phase comparators
Patent number
4,851,784
Issue date
Jul 25, 1989
Marconi Instruments Limited
John N. Wells
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for dry testing water-immersible acoustic tran...
Patent number
4,838,070
Issue date
Jun 13, 1989
Marconi Instruments Limited
Liam P. Bradley
G10 - MUSICAL INSTRUMENTS ACOUSTICS
Information
Patent Grant
Measuring adjacent channel power
Patent number
4,810,960
Issue date
Mar 7, 1989
Marconi Instruments Ltd.
David P. Owen
G01 - MEASURING TESTING
Information
Patent Grant
Six-port reflectometer test arrangement and method including calibr...
Patent number
4,808,912
Issue date
Feb 28, 1989
Marconi Instruments Limited
Christopher M. Potter
G01 - MEASURING TESTING
Information
Patent Grant
Signal measurement
Patent number
4,807,035
Issue date
Feb 21, 1989
Marconi Instruments Limited
Leigh S. Sayliss
G01 - MEASURING TESTING
Information
Patent Grant
Electrical apparatus
Patent number
4,795,970
Issue date
Jan 3, 1989
Marconi Instruments Limited
David P. Owen
G01 - MEASURING TESTING
Information
Patent Grant
Electrical interface arrangement
Patent number
4,780,086
Issue date
Oct 25, 1988
Marconi Instruments Limited
Frank H. Jenner
G01 - MEASURING TESTING
Information
Patent Grant
Test arrangement
Patent number
4,777,429
Issue date
Oct 11, 1988
Marconi Instruments Limited
Christopher M. Potter
G01 - MEASURING TESTING
Information
Patent Grant
Electrical apparatus
Patent number
4,771,442
Issue date
Sep 13, 1988
Marconi Instruments Limited
Damer E. O. Waddington
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Six-port reflectometer test arrangement
Patent number
4,769,592
Issue date
Sep 6, 1988
Marconi Instruments Limited
Christopher M. Potter
G01 - MEASURING TESTING
Information
Patent Grant
Microwave power sensors
Patent number
4,733,170
Issue date
Mar 22, 1988
Marconi Instruments Limited
Paul A. McAllister
G01 - MEASURING TESTING
Information
Patent Grant
Attenuators
Patent number
4,672,336
Issue date
Jun 9, 1987
Marconi Instruments Limited
Neil E. Thomas
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Frequency counting arrangement
Patent number
4,651,089
Issue date
Mar 17, 1987
Marconi Instruments Limited
James E. Haigh
G01 - MEASURING TESTING
Patents Applications
last 30 patents
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