For the Inventor, By the Inventor

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Fenton, MO, United States of America

Edco USA

USPTO Granted Patents = 3

Forward Citations = 24

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1 inventor (with patents filed for the assignee):

Edwin L Johnson (3 out of 11 patents)

3 patents: Sort by Forward Citations

1. 10502237 - Method and system for attenuating transmission of high amplitude oscillations by a vacuum system (2019-12-10),

2. 9964230 - Retarder control valve assembly and system for rail cars (2018-05-08),

3. 9732876 - Retarder control valve assembly and system for rail cars (2017-08-15),

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USPTO Data Jan 1 1976 - Jan 20 2026

3 Patents

#34 in Fenton, MO

#999 in Missouri

#72,234 in US

Fenton, MO, United States of America

Edco USA

Forward Citations = 24

1 inventor:

Edwin L Johnson (3 out of 11 patents)

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