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Trademarks = 4

Forward Citations = 570

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7 inventors (with patents filed for the assignee):

James W Mears (4 out of 20 patents)

Michael A Fischer (4 out of 33 patents)

Donald B Pounder (1 out of 17 patents)

4. Jerome S Pepi (1 out of 6 patents)

5. John A Beukema (1 out of 1 patent)

6. George N Whitaker (1 out of 1 patent)

7. David A Wilk, Deceased (1 out of 1 patent)

11 patents: Sort by Forward Citations

1. 4585069 - Liquid discharge nozzle (1986-04-29),

2. 4580729 - Sprinkler head with improved spray uniformity (1986-04-08),

3. 4570719 - Dry pipe valve accelerator (1986-02-18),

4. 4408788 - Hingeable split pipe collar (1983-10-11),

5. 4405018 - Deflector with surface for circumferentially redistributing fluid for (1983-09-20),

6. 4296816 - Horizontal sprinkler deflector with flow lifting formation (1981-10-27),

7. 4296815 - Deflector with converging lower tines for horizontal sprinkler (1981-10-27),

8. 4279309 - Sprinkler head with noncircular throat (1981-07-21),

9. 4273195 - Fire protection sprinkler head with air-current diverting fins (1981-06-16),

10. 4215751 - Finish plate assembly for a sprinkler head having interengaging ramp and (1980-08-05),

11. 4128128 - Diaphragm actuated sprinkler head (1978-12-05),

Grinnell Fire Protection Systems Company, Inc. is a leading provider of fire protection solutions for commercial, industrial, and residential buildings. With over 100 years of experience in the industry, Grinnell offers a wide range of innovative products and services to help protect lives and property from the dangers of fire. From fire sprinkler systems and alarms to fire extinguishers and emergency lighting, Grinnell is committed to providing quality, reliable solutions for all 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 9 2025

11 Patents

#30 in Providence, RI

#125 in Rhode Island

#26,680 in US

#50,159 in the World

Providence, RI, United States of America

Grinnell Fire Protection Systems Company, Inc.