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Wilmington, DE, United States of America

Tdw Delaware, Inc.

USPTO Granted Patents = 120

CIPO Patents = 10

EPO Patents = 24

Forward Citations = 942

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133 inventors (with patents filed for the assignee):

Roger L Poe (11 out of 26 patents)

Eric N Freeman (10 out of 11 patents)

William Jack Rankin (9 out of 9 patents)

4. Tony R Garrison (7 out of 8 patents)

5. Bill Dean Andrew (7 out of 8 patents)

6. Joseph Alan Morton (6 out of 7 patents)

7. Jeffrey S Rosenberg (6 out of 7 patents)

8. Robert F Strong (5 out of 5 patents)

9. Buddy A Wilson (5 out of 6 patents)

10. Richard L Goswick (5 out of 8 patents)

11. Rick D Pruett (5 out of 6 patents)

12. Gene R Ralls (5 out of 9 patents)

13. Charles Culver Gidden Cooper (4 out of 9 patents)

14. Ed Maynard (4 out of 4 patents)

15. Michael Wilson (4 out of 27 patents)

Core Competencies:

Pipeline Isolation Tool

Polyethylene Pipe Service

Non-Invasive Pipeline Inspection

Directed Jet Impulse Pig

Pressure-Responsive Pigging Element

Composite Magnetic Field Inspection

Fluidic Pig Launcher

Multi-Diameter Foam Pig

Wear Indicator for Pipeline Pigs

High Speed Radio Frequency Communication

Seal Assembly for Isolation

Machine-Actuated Safety Closure

120 patents: Sort by Forward Citations

1. 12379046 - Service tee with valve plug for isolation of side outlet (2025-08-05),

2. 12359762 - Pipeline isolation tool with large-gap sealing element having mini pressure heads and iris-like structural sealing elements (2025-07-15),

3. 12338934 - Activation system for pipeline plug (2025-06-24),

4. 12292151 - Gripper assembly for pipeline isolation tool and methods of use (2025-05-06),

5. 12264767 - Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations (2025-04-01),

6. 12104738 - Completion plug safety indicator and method for its use (2024-10-01),

7. 12092255 - Seal assembly for pipeline isolation tool and methods of use (2024-09-17),

8. 12038118 - Pipeline isolation tool with seal having adaptable mechanical support structure (2024-07-16),

9. 11873938 - Pressure-responsive, deformable, self-integrating pigging element for use in pipeline pigging applications (2024-01-16),

10. 11796114 - Isolation plug with energized seal (2023-10-24),

11. 11796106 - Polyethylene pipe service system including quick connect means for polyethylene pipe tapping, plugging, and completion operations (2023-10-24),

12. 11719341 - Vessel closure device with fail safe failure detection means (2023-08-08),

13. 11686408 - Non-invasive pipeline pig signal using vibration sensors (2023-06-27),

14. 11579118 - Single point contact triaxial sensor head for an inline inspection tool (2023-02-14),

15. 11536414 - Directed jet impulse pig launching system and method of its use (2022-12-27),

TDW Delaware, Inc. is a global leader in pipeline services, specializing in providing safe and reliable solutions for onshore and offshore pipelines. With over 100 years of experience, TDW offers a wide range of products and services including hot tapping, pipeline cleaning and inspection, pigging, isolation, and repair. The company is committed to innovation and industry best practices, ensuring the integrity and efficiency of pipeline operations worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

120 Patents

#50 in Wilmington, DE

#65 in Delaware

#3,087 in US

#6,446 in the World

Wilmington, DE, United States of America

Tdw Delaware, Inc.

Forward Citations = 942

133 inventors:

Roger L Poe (11 out of 26 patents)

Eric N Freeman (10 out of 11 patents)

William Jack Rankin (9 out of 9 patents)

4. Tony R Garrison (7 out of 8 patents)

5. Bill Dean Andrew (7 out of 8 patents)

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