For the Inventor, By the Inventor

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Everett, WA, United States of America

John Fluke Mfg. Co., Inc.

USPTO Granted Patents = 157

Trademarks = 5

Forward Citations = 2,796

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128 inventors (with patents filed for the assignee):

Michael Nelson (7 out of 92 patents)

Larry E Eccleston (7 out of 10 patents)

Benjamin Eng, Jr (6 out of 12 patents)

4. Richard E George (6 out of 6 patents)

5. Tzafrir Sheffer (5 out of 10 patents)

6. John D Polstra (5 out of 5 patents)

7. Glade B Bacon (4 out of 10 patents)

8. Henriecus Koeman (4 out of 7 patents)

9. I Macit Gurol (4 out of 6 patents)

10. Jeffrey C Brown (4 out of 19 patents)

11. Roy W Chapel, Jr (4 out of 5 patents)

12. John M Anholm, Jr (4 out of 4 patents)

13. Steven P Cok (4 out of 5 patents)

14. Marshall H Scott (4 out of 4 patents)

15. Eric R Drucker (4 out of 7 patents)

Core Competencies:

Multimeter

Analog-To-Digital Converter

Network Testing

Thermocouple Detection

Voltage Measurement

Signal Processing

Electronic Instrumentation

Capacitance Measurement

EMI Shielding

Digital Signal Testing

High Voltage Protection

Memory Emulation

157 patents: Sort by Forward Citations

1. 5479643 - Virtual machine programming system (1995-12-26),

2. D361657 - Test tool holster (1995-08-29),

3. 5432706 - Multimeter having min/max time stamp (1995-07-11),

4. 5418464 - Thermocouple open circuit detection with tone frequency signal (1995-05-23),

5. 5418450 - Coupling circuit for a measuring instrument (1995-05-23),

6. 5382910 - Dual time base zero dead zone time domain reflectometer (1995-01-17),

7. 5379176 - Protective input circuit for an instrument (1995-01-03),

8. 5365513 - Token ring local area network testing apparatus for matching its speed (1994-11-15),

9. D351112 - Local area network testing instrument (1994-10-04),

10. 5343164 - Operational amplifier circuit with slew rate enhancement (1994-08-30),

11. 5332963 - High input impedance buffer with low feedback resistance (1994-07-26),

12. 5325365 - In a memory emulation test apparatus, a method of and system for fast (1994-06-28),

13. 5321403 - Multiple slope analog-to-digital converter (1994-06-14),

14. 5309428 - Token ring local area network testing apparatus for phase jitter testing (1994-05-03),

15. 5291073 - Thermal power sensor (1994-03-01),

John Fluke Mfg. Co., Inc. is a leading provider of electronic test tools and software for measurement and monitoring. With a history dating back to 1948, Fluke has been renowned for its innovative products, high-quality standards, and reliable solutions in the fields of electrical, thermal, and industrial testing. From handheld digital multimeters to infrared cameras, Fluke offers a wide range of products designed to meet the needs of professionals in various industries such as electronics, electrical, and maintenance. Visit their website to explore their extensive product portfolio and discover how Fluke can help you achieve accurate measurements and efficient troubleshooting.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

157 Patents

#2 in Everett, WA

#41 in Washington

#2,443 in US

#5,096 in the World

Everett, WA, United States of America

John Fluke Mfg. Co., Inc.

Forward Citations = 2,796

128 inventors:

Michael Nelson (7 out of 92 patents)

Larry E Eccleston (7 out of 10 patents)

Benjamin Eng, Jr (6 out of 12 patents)

4. Richard E George (6 out of 6 patents)

5. Tzafrir Sheffer (5 out of 10 patents)

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