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For the Inventor, By the Inventor

Longview, TX, United States of America

Stemco Inc


USPTO Granted Patents = 38



Trademarks = 32

Forward Citations = 553

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60 inventors (with patents filed for the assignee):

goldMedal Mark J Kranz (9 out of 11 patents)

silverMedal Mark N Gold (7 out of 14 patents)

bronzeMedal 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)


38 patents:

1. 9868477 - Aerodynamic drag reducing apparatus (2018-01-16),
2. 9683596 - Locking nut (2017-06-20),
3. 9669501 - Steering spindle repair kit and associated apparatus and methods (2017-06-06),
4. 9545960 - Rear-mounted aerodynamic structure for truck cargo bodies (2017-01-17),
5. 9545876 - On-board low-power vehicle condition indicator (2017-01-17),
6. 9457847 - Rear-mounted aerodynamic structures for cargo bodies (2016-10-04),
7. 9440689 - Aerodynamic structures secured to the underbody of cargo bodies (2016-09-13),
8. 9440688 - Rear-mounted retractable aerodynamic structure for cargo bodies (2016-09-13),
9. 9387731 - Central tire inflation system pressure regulator (2016-07-12),
10. 9346496 - Aerodynamic drag reducing apparatus (2016-05-24),
11. D749482 - Hub cap (2016-02-16),
12. 9221308 - Central tire inflation system rotary air union (2015-12-29),
13. 9090206 - On-board low-power vehicle condition indicator (2015-07-28),
14. 9062705 - Lockable single piece nut assembly (2015-06-23),
15. 8981919 - Wireless proportional flow indication for a tire inflation system (2015-03-17),
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.

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USPTO Data Jan 1 1976 - Dec 9 2025

38 Patents

#1 in Longview, TX

#500 in Texas

#8,722 in US

#17,287 in the World

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Longview, TX, United States of America

Stemco Inc

Forward Citations = 553

60 inventors:

goldMedal Mark J Kranz (9 out of 11 patents)

silverMedal Mark N Gold (7 out of 14 patents)

bronzeMedal 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)

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