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Hertfordshire, United Kingdom

Marconi Instruments Limited

USPTO Granted Patents = 56

Forward Citations = 707

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47 inventors (with patents filed for the assignee):

David P Owen (11 out of 14 patents)

George Hjipieris (7 out of 7 patents)

John Norman Wells (5 out of 6 patents)

4. Neil E Thomas (5 out of 8 patents)

5. Christopher M Potter (4 out of 4 patents)

6. John D Middleton (3 out of 3 patents)

7. John L Smith (3 out of 3 patents)

8. Frank H Jenner (3 out of 3 patents)

9. Paul Bunyan (2 out of 2 patents)

10. Andrew G Bullock (2 out of 2 patents)

11. Graham John Clarke (2 out of 2 patents)

12. Damer Evelyn Waddington (2 out of 2 patents)

13. Victor F Arnold (2 out of 2 patents)

14. Martin Cryan (1 out of 1 patent)

15. Mark A Janney (1 out of 1 patent)

Core Competencies:

Signal Generators

Frequency Synthesizers

Microwave Power Sensors

Phase Detectors

Frequency Counters

Waveform Generators

Test Instruments

Spectrum Analysers

Electrical Interface Arrangements

Attenuators

Automatic Test Systems

Training Apparatus

56 patents: Sort by Forward Citations

1. 5974362 - Signal generator for testing radio frequency components (1999-10-26),

2. 5790411 - Equipment for testing electronic circuitry (1998-08-04),

3. 5781600 - Frequency synthesizer (1998-07-14),

4. 5526473 - Method of and apparatus for reducing the size of a display while (1996-06-11),

5. 5463310 - Instrument for measuring the frequency and power of a microwave signal (1995-10-31),

6. 5399975 - Method of testing continuity of a connection between an integrated (1995-03-21),

7. 5375065 - Waveform generators using digitally generator superimposed waveforms (1994-12-20),

8. 5363049 - Single device under test (DUT) port common reference/matching impedance (1994-11-08),

9. 5237291 - Microwave frequency synthesizer having selectable oscillator sources and (1993-08-17),

10. 5170486 - Apparatus for synthesizing a composite RF signal suitable for use as a (1992-12-08),

11. 5079522 - Variable frequency signal generator (1992-01-07),

12. 5061909 - Attenuator switchably coupled to transmission path and means for (1991-10-29),

13. 5010560 - Data logging apparatus (1991-04-23),

14. 4984254 - Frequency counter (1991-01-08),

15. 4955826 - Connector (1990-09-11),

Marconi Instruments Limited is a leading provider of high-quality test and measurement solutions. With over 50 years of experience, we specialize in designing and manufacturing innovative instruments for a wide range of industries including telecommunications, aerospace, defense, and more. Our products are known for their precision, reliability, and performance. Visit our website to explore our comprehensive range of instruments and discover how we can help you meet your testing needs.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

56 Patents

#4 in Hertfordshire

#304 in United Kingdom

#12,353 in the World

Hertfordshire, United Kingdom

Marconi Instruments Limited

Forward Citations = 707

47 inventors:

David P Owen (11 out of 14 patents)

George Hjipieris (7 out of 7 patents)

John Norman Wells (5 out of 6 patents)

4. Neil E Thomas (5 out of 8 patents)

5. Christopher M Potter (4 out of 4 patents)

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