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Huntsville, AL, United States of America

Q-track Corporation

USPTO Granted Patents = 18

Trademarks = 1

Forward Citations = 583

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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 specializes in indoor location solutions, offering precise tracking and wireless communications for the industrial, healthcare, and government sectors. Their innovative Near-Field Electromagnetic Ranging (NFER) technology enables real-time tracking of assets, people, and inventory, even in complex indoor environments such as hospitals and factories. Q-Track's solutions improve efficiency, safety, and security in various industries.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

18 Patents

#23 in Huntsville, AL

#71 in Alabama

#17,383 in US

#33,165 in the World

Huntsville, AL, United States of America

Q-track Corporation

Forward Citations = 583

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)

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