For the Inventor, By the Inventor

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Everett, WA, United States of America

John Fluke Mfg. Co., Inc.

Calculating rank

USPTO Granted Patents = 157

Trademarks = 5

Forward Citations = 2,817

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128 inventors (with patents filed for the assignee):

Michael Nelson (7 out of 93 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

Testing Instrument

Analog-to-Digital Converter

Thermocouple

Capacitance Measurement

Integrated Circuit Tester

Functionality Testing

Digital Signal Line Testing

EMI Shielding

Voltage to Frequency Converter

Phase/Frequency Detector

Noise Reduction

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),

Company Overview

John Fluke Mfg. Co., Inc., based in Everett, WA, specializes in electronic measurement solutions, focusing on precision testing instruments. The company develops a range of products including multimeters, thermocouples, and integrated circuit testers, catering to various industries that require reliable measurement and testing capabilities. Their expertise extends to advanced technologies such as analog-to-digital converters and digital signal line testing, ensuring high-quality performance in functionality testing and capacitance measurement.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

157 Patents

#4 in Everett, WA

#49 in Washington

#2,527 in US

#5,237 in the World

Everett, WA, United States of America

John Fluke Mfg. Co., Inc.

Forward Citations = 2,817

128 inventors:

Michael Nelson (7 out of 93 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: John Fluke Mfg. Co., Inc.. Retrieved from https://idiyas.com/company/john-fluke-mfg-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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