For the Inventor, By the Inventor

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Houston, TX, United States of America

Citadel Casing Solutions LLC

USPTO Granted Patents = 9

Trademarks = 4

Forward Citations = 5

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10 inventors (with patents filed for the assignee):

Todd Anthony Stair (5 out of 10 patents)

Henry Eugene Rogers (4 out of 95 patents)

Daniel Lee Schmidt (4 out of 6 patents)

4. Nicolas Rogozinski (2 out of 5 patents)

5. Julio Alberto Cornejo (1 out of 2 patents)

6. Phillip Standifer (1 out of 1 patent)

7. Gary J Makowiecki (1 out of 2 patents)

8. Chris Champeaux (1 out of 2 patents)

9. Carlos A Valdez (1 out of 1 patent)

10. Jimmy Venizelos (1 out of 1 patent)

9 patents: Sort by Forward Citations

1. 12692783 - Shoe track assembly system and method of use (2026-07-28),

2. 12345124 - Multiple stage cementing tool and method of use (2025-07-01),

3. 12313175 - Float valve with a protective spring (2025-05-27),

4. 12286858 - Plug container, method and apparatus (2025-04-29),

5. 12234703 - Wellbore plug and wellbore assembly with plug having a passive non-rotation mechanism (2025-02-25),

6. 12215561 - Hose lift and connection assembly and method of use with a top drive cement head (2025-02-04),

7. 12209477 - Wireline conveyed casing test plug and pressure test tool assembly (2025-01-28),

8. 11920463 - Wellbore system with dissolving ball and independent plug latching profiles (2024-03-05),

9. 11525331 - System and method for establishing a bypass flow path within a wellbore liner (2022-12-13),

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USPTO Data Jan 1 1976 - Sep 29 2026

9 Patents

#513 in Houston, TX

#2,057 in Texas

#32,549 in US

Houston, TX, United States of America

Citadel Casing Solutions LLC

Forward Citations = 5

10 inventors:

Todd Anthony Stair (5 out of 10 patents)

Henry Eugene Rogers (4 out of 95 patents)

Daniel Lee Schmidt (4 out of 6 patents)

4. Nicolas Rogozinski (2 out of 5 patents)

5. Julio Alberto Cornejo (1 out of 2 patents)

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