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For the Inventor, By the Inventor

Edmonton, Canada

C-tech Oilwell Technologies Inc.


USPTO Granted Patents = 2


Forward Citations = 5

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2 inventors (with patents filed for the assignee):

goldMedal Emanuel Kulhanek (2 out of 5 patents)

silverMedal Mark D Widney (1 out of 3 patents)


2 patents:

1. 7383879 - Well string injection system and method (2008-06-10),
2. 7318482 - Balanced continuous well string injection unit (2008-01-15),
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USPTO Data Jan 1 1976 - Dec 16 2025

2 Patents

#145 in Edmonton

#5,835 in Canada

...
Edmonton, Canada

C-tech Oilwell Technologies Inc.

Forward Citations = 5

2 inventors:

goldMedal Emanuel Kulhanek (2 out of 5 patents)

silverMedal Mark D Widney (1 out of 3 patents)

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