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For the Inventor, By the Inventor

Three Rivers, MI, United States of America

Armstrong International, Inc.


USPTO Granted Patents = 40

% Expired Patents = 10.0


Trademarks = 17

Forward Citations = 450

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52 inventors (with patents filed for the assignee):

goldMedal Michael Herman Gaines (12 out of 12 patents)

silverMedal Ronald D Schlesch (11 out of 12 patents)

bronzeMedal Rex B Cheskaty (8 out of 8 patents)

4.  William R Horton (6 out of 6 patents)

5.  Michael P Hellman (6 out of 6 patents)

6.  Kurt Armstrong (4 out of 4 patents)

7.  Thomas Jack Secord (4 out of 4 patents)

8.  Lawrence J Grubka (4 out of 9 patents)

9.  Charles M Reynolds (4 out of 4 patents)

10.  Shane Russell (3 out of 3 patents)

11.  Steven O Smith (3 out of 3 patents)

12.  Glenn T Leggett (2 out of 2 patents)

13.  Robert E Carter (2 out of 14 patents)

14.  David M Armstrong (2 out of 2 patents)

15.  Donald J Hume (2 out of 5 patents)


Core Competencies:
Device Monitoring
Steam Trap
Hot Water Control
Remote Monitoring
Centrifugal Separator
Gas Humidifier
Energy Loss Detection
Pump Assembly
Heat Exchanger
Mixing Valve
Steam Generator
Jacketed Manifold

40 patents:

1. 12480916 - Device monitoring systems and methods (2025-11-25),
2. 11726068 - Steam/hot water device monitoring (2023-08-15),
3. 11460152 - Steam trap and valve assembly station (2022-10-04),
4. 11255823 - Steam/hot water device monitoring (2022-02-22),
5. 10667023 - Steam/hot water monitoring and control system (2020-05-26),
6. D884519 - Handheld tester (2020-05-19),
7. 8935126 - Steam trap monitoring (2015-01-13),
8. 7912675 - Method and apparatus for analyzing steam trap data (2011-03-22),
9. 7702484 - Steam trap monitoring (2010-04-20),
10. 7246036 - Remote monitor for steam traps (2007-07-17),
11. 7203626 - Method and apparatus for analyzing steam trap data (2007-04-10),
12. 7201181 - Mixing valve (2007-04-10),
13. 7150100 - Method of forming a jacketed steam distribution tube (2006-12-19),
14. 6602056 - Steam driven pump (2003-08-05),
15. 6599096 - Steam driven pump (2003-07-29),
Armstrong International, Inc. is a leading provider of innovative solutions in thermal energy management, specializing in device monitoring systems and steam-related technologies. The company focuses on developing advanced products such as steam trap monitoring systems, steam separators, and gas-fired humidifiers, which enhance efficiency and reliability in various industrial applications. Headquartered in Three Rivers, MI, Armstrong International is committed to delivering high-quality solutions that optimize energy use and improve operational performance across diverse sectors.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Armstrong International, Inc.
40 Patents

#1 in Three Rivers, MI

#331 in Michigan

#8,618 in US

#17,048 in the World

Three Rivers, MI (US)
Three Rivers, MI, United States of America

Armstrong International, Inc.

Forward Citations = 450

52 inventors:

goldMedal Michael Herman Gaines (12 out of 12 patents)

silverMedal Ronald D Schlesch (11 out of 12 patents)

bronzeMedal Rex B Cheskaty (8 out of 8 patents)

4.  William R Horton (6 out of 6 patents)

5.  Michael P Hellman (6 out of 6 patents)

Please report any incorrect information to [email protected]
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