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For the Inventor, By the Inventor

Youngsville, LA, United States of America

Petro-Design, Inc.


USPTO Granted Patents = 2

Forward Citations = 89

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1 inventor (with patents filed for the assignee):

goldMedal William N Schoeffler (2 out of 21 patents)


2 patents:

1. 4655299 - Angle deviation tool (1987-04-07),
2. 4655289 - Remote control selector valve (1987-04-07),
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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#2 in Youngsville, LA

#429 in Louisiana

#92,697 in US

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Youngsville, LA, United States of America

Petro-Design, Inc.

Forward Citations = 89

1 inventor:

goldMedal William N Schoeffler (2 out of 21 patents)

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