For the Inventor, By the Inventor

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Issaquah, WA, United States of America

Zetec, Inc.

USPTO Granted Patents = 21

EPO Patents = 5

Trademarks = 11

Forward Citations = 96

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38 inventors (with patents filed for the assignee):

William Frederick Ziegenhagen (3 out of 3 patents)

Estell Lopez (3 out of 3 patents)

Christopher R Loud (3 out of 3 patents)

4. Frederic Morrow (2 out of 2 patents)

5. Alexandre Charlebois (2 out of 2 patents)

6. Martin Garneau (2 out of 2 patents)

7. Stephane Turgeon (2 out of 2 patents)

8. Stephen Timm (2 out of 2 patents)

9. Steve Timm (2 out of 2 patents)

10. Tom O'Dell (2 out of 2 patents)

11. Evan Lloyd (2 out of 2 patents)

12. Christopher Matthew Hils (2 out of 3 patents)

13. Evans H Nguyen (1 out of 20 patents)

14. William Oren Wekell (1 out of 19 patents)

15. Laurent Enenkel (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 12607603 - Adjustable centering feet assembly for eddy current probe (2026-04-21),

2. 11499941 - Eddy current probe (2022-11-15),

3. 11499940 - Eddy current probe (2022-11-15),

4. 10921287 - Drive coil for eddy current inspection probe (2021-02-16),

5. 10866213 - Eddy current probe (2020-12-15),

6. 10295503 - System for display of non-destructive testing region (2019-05-21),

7. 9784715 - Eddy current inspection probe based on magnetoresistive sensors (2017-10-10),

8. 9267921 - Axial and circumferential flaw sensing eddy current probe (2016-02-23),

9. 8738339 - System and method for ultrasonic testing (2014-05-27),

10. 8386404 - Methods for automated eddy current non-destructive testing analysis (2013-02-26),

11. 7109704 - Flexible shaft with a helically wound data cable supporting a smooth outer sleeve for eddy current probe (2006-09-19),

12. 6923078 - Prestretched shafet for eddy current probe (2005-08-02),

13. 6809671 - Dynamic gain control in a digital eddy current signal processor (2004-10-26),

14. 6798197 - Dynamic gain control in a digital eddy current signal processor (2004-09-28),

15. 6734669 - Digital demodulation of an eddy current signal (2004-05-11),

Zetec, Inc. is a technology company based in Issaquah, Washington, specializing in advanced inspection solutions for critical infrastructure. The company focuses on non-destructive testing (NDT) technologies, particularly in the fields of aerospace, energy, and manufacturing. Zetec develops innovative software and hardware systems that enhance the reliability and efficiency of inspection processes, ensuring safety and compliance in various industries. Their expertise in ultrasonic and eddy current testing positions them as a leader in the NDT sector.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

21 Patents

#5 in Issaquah, WA

#335 in Washington

#15,668 in US

#29,893 in the World

Issaquah, WA, United States of America

Zetec, Inc.

Forward Citations = 96

38 inventors:

William Frederick Ziegenhagen (3 out of 3 patents)

Estell Lopez (3 out of 3 patents)

Christopher R Loud (3 out of 3 patents)

4. Frederic Morrow (2 out of 2 patents)

5. Alexandre Charlebois (2 out of 2 patents)

Please report any incorrect information to [email protected]

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