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For the Inventor, By the Inventor

Austin, TX, United States of America

Nesa Energy LLC


USPTO Granted Patents = 6

Forward Citations = 0

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3 inventors (with patents filed for the assignee):

goldMedal Michael Sepulveda (6 out of 6 patents)

silverMedal Sigurd Eirik Sperbund (5 out of 6 patents)

bronzeMedal Roger Antonsen (1 out of 1 patent)


6 patents:

1. 12716320 - Methods and systems for rotating a casing to ensure efficient displacement of cement slurry (2026-08-25),
2. 12601239 - Methods and systems for rotating a casing to ensure efficient displacement of cement slurry (2026-04-14),
3. 12421805 - Methods and systems for a clutch allowing for one way free rotation of a mandrel (2025-09-23),
4. 12359529 - Methods and systems for rotating a casing to ensure efficient displacement of cement slurry (2025-07-15),
5. 12116861 - Methods and systems for rotating a casing to ensure efficient displacement of cement slurry (2024-10-15),
6. 11891876 - Methods and systems for rotating a casing to ensure efficient displacement of cement slurry (2024-02-06),
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USPTO Data Jan 1 1976 - Sep 29 2026

6 Patents

#428 in Austin, TX

#2,903 in Texas

#44,917 in US

Austin, TX (US)
Austin, TX, United States of America

Nesa Energy LLC

Forward Citations = 0

3 inventors:

goldMedal Michael Sepulveda (6 out of 6 patents)

silverMedal Sigurd Eirik Sperbund (5 out of 6 patents)

bronzeMedal Roger Antonsen (1 out of 1 patent)

Please report any incorrect information to [email protected]
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