For the Inventor, By the Inventor

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Longview, TX, United States of America

Stemco Inc

USPTO Granted Patents = 39

% Expired Patents = 12.8

CIPO Patents = 2

EPO Patents = 4

Trademarks = 28

Forward Citations = 570

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55 inventors (with patents filed for the assignee):

Mark J Kranz (9 out of 11 patents)

Mark N Gold (7 out of 14 patents)

Daniel Trejo Jimenez (5 out of 13 patents)

4. Laurence B Winn (5 out of 5 patents)

5. Andrew F Smith (4 out of 15 patents)

6. Jeffrey J Grossmann (4 out of 17 patents)

7. James C Steph (3 out of 3 patents)

8. Michael James Massey (3 out of 5 patents)

9. Barry E Braun (3 out of 3 patents)

10. Paul S Perry (3 out of 3 patents)

11. Thomas Scott Breidenbach (2 out of 38 patents)

12. Jared A Niemiec (2 out of 7 patents)

13. Robert R Cholnoky (2 out of 3 patents)

14. Michael W Polidori (2 out of 8 patents)

15. Court S Hinricher (2 out of 6 patents)

39 patents: Sort by Forward Citations

1. 12658355 - Coil substrate and electronic apparatus including the same (2026-06-16),

2. 9868477 - Aerodynamic drag reducing apparatus (2018-01-16),

3. 9683596 - Locking nut (2017-06-20),

4. 9669501 - Steering spindle repair kit and associated apparatus and methods (2017-06-06),

5. 9545960 - Rear-mounted aerodynamic structure for truck cargo bodies (2017-01-17),

6. 9545876 - On-board low-power vehicle condition indicator (2017-01-17),

7. 9457847 - Rear-mounted aerodynamic structures for cargo bodies (2016-10-04),

8. 9440689 - Aerodynamic structures secured to the underbody of cargo bodies (2016-09-13),

9. 9440688 - Rear-mounted retractable aerodynamic structure for cargo bodies (2016-09-13),

10. 9387731 - Central tire inflation system pressure regulator (2016-07-12),

11. 9346496 - Aerodynamic drag reducing apparatus (2016-05-24),

12. D749482 - Hub cap (2016-02-16),

13. 9221308 - Central tire inflation system rotary air union (2015-12-29),

14. 9090206 - On-board low-power vehicle condition indicator (2015-07-28),

15. 9062705 - Lockable single piece nut assembly (2015-06-23),

Stemco Inc is a leading manufacturer of heavy-duty components for the commercial vehicle industry. With over 60 years of experience, the company specializes in providing innovative solutions for wheel end, suspension, and braking systems. Stemco is dedicated to delivering high-quality products that improve efficiency, safety, and performance for fleet operators worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

39 Patents

#1 in Longview, TX

#487 in Texas

#8,810 in US

#17,413 in the World

Longview, TX, United States of America

Stemco Inc

Forward Citations = 570

55 inventors:

Mark J Kranz (9 out of 11 patents)

Mark N Gold (7 out of 14 patents)

Daniel Trejo Jimenez (5 out of 13 patents)

4. Laurence B Winn (5 out of 5 patents)

5. Andrew F Smith (4 out of 15 patents)

Please report any incorrect information to [email protected]

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