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For the Inventor, By the Inventor

Shrewsbury, MA, United States of America

Metso Flow Control USA Inc.


USPTO Granted Patents = 3


Trademarks = 21

Forward Citations = 5

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2 inventors (with patents filed for the assignee):

goldMedal Leonard T Armstrong (2 out of 3 patents)

silverMedal Ross Kunz (1 out of 3 patents)


3 patents:

1. 10480633 - Electric actuator with a fail-safe mode of operation (2019-11-19),
2. 10197141 - Electric actuator with a fail-safe mode of operation (2019-02-05),
3. 9671028 - Low power solenoid actuated valve (2017-06-06),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#9 in Shrewsbury, MA

#3,875 in Massachusetts

#71,949 in US

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Shrewsbury, MA, United States of America

Metso Flow Control USA Inc.

Forward Citations = 5

2 inventors:

goldMedal Leonard T Armstrong (2 out of 3 patents)

silverMedal Ross Kunz (1 out of 3 patents)

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