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For the Inventor, By the Inventor

Rock Island, IL, United States of America

Inpro/seal LLC


USPTO Granted Patents = 25



Trademarks = 26

Forward Citations = 136

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18 inventors (with patents filed for the assignee):

goldMedal Neil F Hoehle (16 out of 18 patents)

silverMedal David C Orlowski (13 out of 46 patents)

bronzeMedal Robert A Tejano (8 out of 9 patents)

4.  Kennon Guglielmo (3 out of 69 patents)

5.  Justin H Sanders (3 out of 16 patents)

6.  Chintan Shah (3 out of 3 patents)

7.  Dwight A Vicars (3 out of 4 patents)

8.  Michael T Hambidge (3 out of 7 patents)

9.  Timothy J Westerdale (3 out of 7 patents)

10.  Chad Stovell (3 out of 4 patents)

11.  Timothy J Barton (3 out of 4 patents)

12.  James Cole (3 out of 3 patents)

13.  Thomas D Coe (2 out of 4 patents)

14.  Shawn Horton (2 out of 2 patents)

15.  Chandhini Gowthaman (2 out of 2 patents)


25 patents:

1. 12352221 - Natural gas engines with fuel quality determination (2025-07-08),
2. 12297909 - Shaft seal assembly (2025-05-13),
3. 12209545 - Natural gas engines with fuel quality determination (2025-01-28),
4. 12163590 - Shaft seal assembly (2024-12-10),
5. 12025063 - Natural gas engines with fuel quality determination (2024-07-02),
6. 12000484 - Shaft seal assembly (2024-06-04),
7. 11543031 - Shaft seal assembly (2023-01-03),
8. 11002362 - Shaft seal assembly (2021-05-11),
9. 10927961 - Shaft seal assembly (2021-02-23),
10. 10364895 - Shaft seal assembly (2019-07-30),
11. 10270320 - Motor grounding seal (2019-04-23),
12. 10203036 - Shaft seal assembly (2019-02-12),
13. 9831739 - Explosion-proof current diverting device (2017-11-28),
14. 9634547 - Motor grounding seal (2017-04-25),
15. 9614339 - Current diverter ring (2017-04-04),
Inpro/Seal LLC is a leading manufacturer of bearing isolators, air barriers, and sealing solutions for rotating equipment in various industries. Their innovative technologies provide superior protection against contamination and reduce downtime, ensuring longer equipment life and increased efficiency. With over 40 years of experience, Inpro/Seal has established a reputation for delivering reliable products and exceptional customer service.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

25 Patents

#1 in Rock Island, IL

#667 in Illinois

#12,896 in US

#24,897 in the World

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Rock Island, IL, United States of America

Inpro/seal LLC

Forward Citations = 136

18 inventors:

goldMedal Neil F Hoehle (16 out of 18 patents)

silverMedal David C Orlowski (13 out of 46 patents)

bronzeMedal Robert A Tejano (8 out of 9 patents)

4.  Kennon Guglielmo (3 out of 69 patents)

5.  Justin H Sanders (3 out of 16 patents)

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