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For the Inventor, By the Inventor

Charlotte, NC, United States of America

Stemco Products, Inc.


USPTO Granted Patents = 31

% Expired Patents = 19.4



Trademarks = 39

Forward Citations = 41

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40 inventors (with patents filed for the assignee):

goldMedal Daniel Trejo Jimenez (8 out of 13 patents)

silverMedal Paul Dolan (7 out of 10 patents)

bronzeMedal Mark N Gold (6 out of 14 patents)

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

5.  Michael W Polidori (5 out of 8 patents)

6.  Lutz May (4 out of 58 patents)

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

8.  Jared A Niemiec (4 out of 7 patents)

9.  William Chirrey (3 out of 3 patents)

10.  Herman E Goins, Jr (3 out of 3 patents)

11.  Monte Pearson (3 out of 3 patents)

12.  Court S Hinricher (3 out of 6 patents)

13.  James Allen Baker (2 out of 2 patents)

14.  Lucia Santamaria (2 out of 2 patents)

15.  Yang Julia Xiang (2 out of 2 patents)


Core Competencies:
Torque-Limiting Nut
Wheelend Assembly
Aerodynamic Structures
Hub Cap Vent Shield
Differential Sensor
Inflation Hubcap
Air Spring
Center Link Assembly
Steering Axle
Distance Measurement
Retractable Device
Lubrication Spacer

31 patents:

1. 12698792 - Torque-limiting nut (2026-08-04),
2. 11898587 - Torque-limiting nut (2024-02-13),
3. 11673424 - Unitized wheelend assembly and method of installation (2023-06-13),
4. 11667150 - Hub cap vent shield (2023-06-06),
5. 11555579 - Wheelend assembly grease tool (2023-01-17),
6. 11396905 - Center linkage apparatus (2022-07-26),
7. 11021009 - Hub cap vent shield (2021-06-01),
8. 10919338 - Unitized wheelend assembly and method of installation (2021-02-16),
9. 10828934 - Spacer to enhance lubrication for wheelend assembly (2020-11-10),
10. 10794680 - Differential magnetic proximity sensor (2020-10-06),
11. 10794491 - Wheelend assembly seal (2020-10-06),
12. 10745255 - Vehicle boom arm alarm system (2020-08-18),
13. 10703135 - Inflation hubcap installation system (2020-07-07),
14. 10690208 - Composite bead plate and an air spring using the same (2020-06-23),
15. 10625793 - Rear-mounted retractable aerodynamic structure for cargo bodies (2020-04-21),
Company Overview
Stemco Products, Inc. is a prominent manufacturer specializing in innovative solutions for the transportation industry, particularly in the realm of commercial vehicle components. The company focuses on developing advanced technologies that enhance vehicle performance, safety, and efficiency. With a strong presence in Charlotte, NC, Stemco is dedicated to delivering high-quality products that meet the evolving needs of its customers, leveraging expertise in engineering and manufacturing to drive industry standards forward.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Stemco Products, Inc. USPTO Patent Assignee Logo
31 Patents

#50 in Charlotte, NC

#255 in North Carolina

#10,936 in US

#21,284 in the World

Charlotte, NC (US)
Charlotte, NC, United States of America

Stemco Products, Inc.

Forward Citations = 41

40 inventors:

goldMedal Daniel Trejo Jimenez (8 out of 13 patents)

silverMedal Paul Dolan (7 out of 10 patents)

bronzeMedal Mark N Gold (6 out of 14 patents)

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

5.  Michael W Polidori (5 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stemco Products, Inc.. Retrieved from https://idiyas.com/company/stemco-products

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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