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For the Inventor, By the Inventor

Muskegon, MI, United States of America

General Signal Corporation


USPTO Granted Patents = 786


Trademarks = 40

Forward Citations = 14,480

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692 inventors (with patents filed for the assignee):

goldMedal Thomas H Engle (31 out of 65 patents)

silverMedal Henry C Sibley (27 out of 27 patents)

bronzeMedal Robert W Right (25 out of 39 patents)

4.  Ronald J Weetman (19 out of 27 patents)

5.  Hilario S Costa (16 out of 32 patents)

6.  John H Auer, Jr (15 out of 16 patents)

7.  Richard A Howk (12 out of 12 patents)

8.  John C Homer (12 out of 12 patents)

9.  Marlin D Schutte (12 out of 13 patents)

10.  Klaus H Frielinghaus (11 out of 12 patents)

11.  William F Hutchings (11 out of 12 patents)

12.  Stephen L Markle (10 out of 20 patents)

13.  David B Rutherford (10 out of 11 patents)

14.  Thomas M Bogenschutz (10 out of 11 patents)

15.  Walter W Bachle (9 out of 10 patents)


Core Competencies:
Hydraulic Systems
Closure Apparatus
Locking Systems
Signal Multiplexer
Life Safety Systems
Coaxial Antennas
Mixing Impellers
Biochemical Oxidation
Material Handling Systems
Audio Communication
Emergency Lighting Devices
Distributed Intelligence

786 patents:

1. 7088227 - Alarm for a hydraulic system, hydraulic system, method of giving an alarm and vehicle incorporating a hydraulic system (2006-08-08),
2. 6886709 - Closure apparatus and method of closing an opening (2005-05-03),
3. 6857536 - Support device and method for a rotary closure assembly (2005-02-22),
4. 6851452 - Guide plate (2005-02-08),
5. 6708837 - Locking system and method for rotary closure assembly (2004-03-23),
6. 6619568 - Material dispersing device and method (2003-09-16),
7. 6612444 - Apparatus and process for recovering a desired fraction of a raw material (2003-09-02),
8. 6580729 - Signal multiplexer and method (2003-06-17),
9. 6417772 - Life safety system with energy saving visual alarm appliance and method (2002-07-09),
10. 6398184 - Lock device and lock method for knife gate valves (2002-06-04),
11. 6373444 - Common aperture UHF/VHF high band slotted coaxial antenna (2002-04-16),
12. 6359530 - Switching waveguide directional coupler and method (2002-03-19),
13. 6343445 - Tower structure (2002-02-05),
14. 6341930 - Divergent inlet for bulk material feeder and method of retrofiting feeder with same (2002-01-29),
15. 6334705 - Fluid mixing impellers with shear generating venturi (2002-01-01),
General Signal Corporation is a leading global provider of electrical and electronic equipment and systems. With a diverse product portfolio, we serve various industries including power generation, transportation, industrial automation, telecommunications, and more. Our innovative solutions and reliable services help our customers optimize their operations, enhance safety, and improve efficiency. Visit our website for more information about General Signal Corporation and our range of products and services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

786 Patents

#1 in Muskegon, MI

#31 in Michigan

#621 in US

#1,235 in the World

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Muskegon, MI, United States of America

General Signal Corporation

Forward Citations = 14,480

692 inventors:

goldMedal Thomas H Engle (31 out of 65 patents)

silverMedal Henry C Sibley (27 out of 27 patents)

bronzeMedal Robert W Right (25 out of 39 patents)

4.  Ronald J Weetman (19 out of 27 patents)

5.  Hilario S Costa (16 out of 32 patents)

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