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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Energy Control Systems, Inc.


USPTO Granted Patents = 3

% Expired Patents = 100.0

Forward Citations = 4

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2 inventors (with patents filed for the assignee):

goldMedal James M Royston (3 out of 5 patents)

silverMedal John A Samudovsky (3 out of 3 patents)


3 patents:

1. 7931306 - Vented gas riser apparatus (2011-04-26),
2. 7753412 - Vented gas riser apparatus (2010-07-13),
3. 7740284 - Vented gas riser apparatus (2010-06-22),
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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#366 in Pittsburgh, PA

#2,676 in Pennsylvania

#73,732 in US

Pittsburgh, PA (US)
Pittsburgh, PA, United States of America

Energy Control Systems, Inc.

Forward Citations = 4

2 inventors:

goldMedal James M Royston (3 out of 5 patents)

silverMedal John A Samudovsky (3 out of 3 patents)

Please report any incorrect information to [email protected]
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