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For the Inventor, By the Inventor

Westminster, MA, United States of America

Grinnell Corporation


USPTO Granted Patents = 42



Trademarks = 20

Forward Citations = 1,382

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27 inventors (with patents filed for the assignee):

goldMedal Michael A Fischer (11 out of 33 patents)

silverMedal Yoram Ringer (7 out of 65 patents)

bronzeMedal James W Mears (5 out of 20 patents)

4.  Leo William Fleury, Jr (5 out of 22 patents)

5.  Donald B Pounder (3 out of 17 patents)

6.  Michael W Horgan (3 out of 11 patents)

7.  James M Martin (3 out of 8 patents)

8.  James F Martin (3 out of 3 patents)

9.  Sandra M Lippka (2 out of 21 patents)

10.  David J LeBlanc (2 out of 2 patents)

11.  Jerome S Pepi (2 out of 6 patents)

12.  Charles N Chatterley (2 out of 2 patents)

13.  Michael A Fishcer (2 out of 2 patents)

14.  Gregory Fuchs (2 out of 2 patents)

15.  Robert J Poleshuk (2 out of 2 patents)


Core Competencies:
Fire Protection Sprinkler
Dry Pipe Valve
Upright Fire Protection Nozzle
Automatic Water Supply Shutoff Valve
Check Valve
Backflow Preventer
Pendent-Type Diffuser
Fire Protection Deflector
Water Meter Register
Pipe Cutting Tool
Cold Rolling Positioning Roller
Heat-Responsive Element

42 patents:

1. 7814983 - Dry pipe valve for fire protection sprinkler system (2010-10-19),
2. 7322423 - Dry pipe valve for fire protection sprinkler system (2008-01-29),
3. 7165624 - Early suppression fast response fire protection sprinkler (2007-01-23),
4. 7104333 - Dry pipe valve for fire protection sprinkler system (2006-09-12),
5. 6976543 - Low pressure, extended coverage, upright fire protection sprinkler (2005-12-20),
6. 6810963 - Dry pipe valve for fire protection sprinkler system (2004-11-02),
7. 6726119 - Upright fire protection nozzle (2004-04-27),
8. 6557645 - Dry pipe valve for fire protection sprinkler system (2003-05-06),
9. 6454017 - Upright fire protection nozzle (2002-09-24),
10. 6357467 - Automatic water supply shutoff valve (2002-03-19),
11. 6318564 - Strainer (2001-11-20),
12. 6308784 - Flush sprinkler (2001-10-30),
13. 6123153 - Fire protection sprinkle and release mechanism (2000-09-26),
14. 6059044 - Fire protection sprinkler and deflector (2000-05-09),
15. 6013150 - Article tagging apparatus and method (2000-01-11),
Grinnell Corporation is a leading manufacturing company specializing in fire protection products. With a history dating back to 1850, we have been providing innovative solutions for fire suppression, sprinkler systems, valves, and other industry-leading products. Our commitment to quality, reliability, and customer satisfaction sets us apart in the market. Visit our website to learn more about our extensive range of products and how we can meet your fire protection needs.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 23 2025

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42 Patents

#3 in Westminster, MA

#467 in Massachusetts

#7,977 in US

#15,852 in the World

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Westminster, MA, United States of America

Grinnell Corporation

Forward Citations = 1,382

27 inventors:

goldMedal Michael A Fischer (11 out of 33 patents)

silverMedal Yoram Ringer (7 out of 65 patents)

bronzeMedal James W Mears (5 out of 20 patents)

4.  Leo William Fleury, Jr (5 out of 22 patents)

5.  Donald B Pounder (3 out of 17 patents)

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