For the Inventor, By the Inventor

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Huntsville, AL, United States of America

Q-Track Corporation

USPTO Granted Patents = 18

% Expired Patents = 72.2

Forward Citations = 594

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19 inventors (with patents filed for the assignee):

Hans Gregory Schantz (18 out of 45 patents)

Robert Edward DePierre (9 out of 10 patents)

David Langford (5 out of 9 patents)

4. Alfred Hans Unden (3 out of 3 patents)

5. Eric Alexander Richards (3 out of 3 patents)

6. Glenn Wolenec (3 out of 4 patents)

7. Jerome Sylvester Gabig (3 out of 4 patents)

8. Stephen A Werner (2 out of 2 patents)

9. Peter Beucher (2 out of 3 patents)

10. James David Fluhler (2 out of 2 patents)

11. Kazimierz Siwiak (2 out of 39 patents)

12. James Matthew Barron (2 out of 2 patents)

13. Andrew Compston (2 out of 2 patents)

14. Christopher David Pittman (1 out of 3 patents)

15. James Lee Richards (1 out of 132 patents)

18 patents: Sort by Forward Citations

1. 9997845 - Embedded symmetric multiple axis antenna system with isolation among the multiple axes (2018-06-12),

2. 9285453 - Method of near-field electromagnetic ranging and location (2016-03-15),

3. 9209525 - Directive, electrically-small UWB antenna system and method (2015-12-08),

4. 8922440 - Space efficient magnetic antenna method (2014-12-30),

5. 8643538 - Near field electromagnetic location system and method (2014-02-04),

6. 8599011 - Firefighter location and rescue equipment employing path comparison of mobile tags (2013-12-03),

7. 8436780 - Planar loop antenna system (2013-05-07),

8. 8326451 - Inventory control and method (2012-12-04),

9. 8253626 - Multiple phase state near-field electromagnetic system and method for communication and location (2012-08-28),

10. 8018383 - Method and apparatus for determining location using signals-of-opportunity (2011-09-13),

11. 7957833 - Asset localization identification and movement system and method (2011-06-07),

12. 7859452 - Near field electromagnetic calibration system (2010-12-28),

13. 7755552 - Space efficient magnetic antenna system (2010-07-13),

14. 7592949 - Near field electromagnetic positioning calibration system and method (2009-09-22),

15. 7538715 - Electromagnetic location and display system and method (2009-05-26),

Q-Track Corporation, based in Huntsville, Alabama, specializes in advanced location and tracking technologies. The company focuses on developing innovative solutions that enhance situational awareness and operational efficiency across various sectors, including defense, healthcare, and industrial applications. By leveraging cutting-edge technologies, Q-Track aims to provide precise tracking capabilities that support critical decision-making processes and improve overall safety and productivity in complex environments.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#23 in Huntsville, AL

#74 in Alabama

#17,952 in US

#34,187 in the World

Huntsville, AL, United States of America

Q-Track Corporation

Forward Citations = 594

19 inventors:

Hans Gregory Schantz (18 out of 45 patents)

Robert Edward DePierre (9 out of 10 patents)

David Langford (5 out of 9 patents)

4. Alfred Hans Unden (3 out of 3 patents)

5. Eric Alexander Richards (3 out of 3 patents)

Please report any incorrect information to [email protected]

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