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Aberdeen, United Kingdom

Deep Casing Tools, Ltd.

USPTO Granted Patents = 11

CIPO Patents = 16

EPO Patents = 4

Trademarks = 4

Forward Citations = 84

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18 inventors (with patents filed for the assignee):

David John Stephenson (5 out of 5 patents)

Edward Docherty Scott (5 out of 11 patents)

Tomasz Jozef Walerianczyk (4 out of 4 patents)

4. Lance S Davis (4 out of 4 patents)

5. Wojciech Buczak (1 out of 2 patents)

6. Neil Andrew Abercrombie Simpson (1 out of 62 patents)

7. Mark W Presslie (1 out of 2 patents)

8. Tomasz J Walerianczyk (1 out of 1 patent)

9. Derek Frederick Herrera (1 out of 2 patents)

10. Rafael Villa De Santana (1 out of 1 patent)

11. Mark Wilson Presslie (0 patent)

12. Lance Stephen Davis (0 patent)

13. Derek Herrera (0 patent)

11 patents: Sort by Forward Citations

1. 12392200 - Fluid operated motor for running casing with bypass for pumping lost circulation material (2025-08-19),

2. 12173574 - Method and apparatus for well tubular flotation (2024-12-24),

3. 11828119 - Method and apparatus for well tubular flotation (2023-11-28),

4. 10934796 - Method for removing casing from a wellbore (2021-03-02),

5. 10907439 - Apparatus and method for well tubular flotation (2021-02-02),

6. 9574406 - Wellbore completion system with reaming tool (2017-02-21),

7. 9080384 - Pressure balanced fluid operated reaming tool for use in placing wellbore tubulars (2015-07-14),

8. 8807245 - Reaming tool (2014-08-19),

9. 8622126 - Reaming tool (2014-01-07),

10. 8074742 - Apparatus and method for cutting a wellbore (2011-12-13),

11. 7849927 - Running bore-lining tubulars (2010-12-14),

Deep Casing Tools designs, delivers and supports new technology to land casing and completions at target depth. The company has developed the Turbocaser Express®, a high-speed drillable reaming system that enables casings to be landed at target depth first time.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

11 Patents

#22 in Aberdeen

#1,552 in United Kingdom

#50,136 in the World

Aberdeen, United Kingdom

Deep Casing Tools, Ltd.

Forward Citations = 84

18 inventors:

David John Stephenson (5 out of 5 patents)

Edward Docherty Scott (5 out of 11 patents)

Tomasz Jozef Walerianczyk (4 out of 4 patents)

4. Lance S Davis (4 out of 4 patents)

5. Wojciech Buczak (1 out of 2 patents)

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