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For the Inventor, By the Inventor

Wilmington, DE, United States of America

Ensco International Incorporated


USPTO Granted Patents = 30



Trademarks = 6

Forward Citations = 69

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32 inventors (with patents filed for the assignee):

goldMedal Richard Robert Roper (8 out of 15 patents)

silverMedal Christopher Scott Stewart (7 out of 8 patents)

bronzeMedal Van Van Vu (6 out of 6 patents)

4.  Justin Dow Alcorn (4 out of 4 patents)

5.  Gilles Luca (2 out of 2 patents)

6.  Ala Eddine Omrani (2 out of 2 patents)

7.  Juan Carlos Serna (2 out of 2 patents)

8.  Steven Andrew Leppard (2 out of 2 patents)

9.  Shiyu Chen (2 out of 2 patents)

10.  Wenzhi Li (2 out of 2 patents)

11.  Thomas C Baucke (2 out of 2 patents)

12.  Frank B Williford (2 out of 3 patents)

13.  Christopher Morris Johnston (1 out of 1 patent)

14.  John Stokes Knowlton (1 out of 1 patent)

15.  Stephen Joseph DeLory (1 out of 1 patent)


30 patents:

1. 11566478 - Compensated drill floor (2023-01-31),
2. 11326404 - Tripping speed modification (2022-05-10),
3. 11118416 - Lift and turning device (2021-09-14),
4. 11118413 - Vertical lift rotary table (2021-09-14),
5. 11053765 - Automatic well control (2021-07-06),
6. 10975637 - Joint recognition system (2021-04-13),
7. 10745980 - Vertical lift rotary table (2020-08-18),
8. 10669790 - Pipe retaining structure (2020-06-02),
9. 10669784 - Removable drill floor (2020-06-02),
10. 10538986 - Subsea pressure reduction manifold (2020-01-21),
11. 10513888 - Weathervaning riser joint (2019-12-24),
12. 10358191 - Floating structure (2019-07-23),
13. 10294737 - Vertical lift rotary table (2019-05-21),
14. 10294729 - Riser and subsea equipment guidance (2019-05-21),
15. 10151158 - Bail mounted guide (2018-12-11),
Ensco International Incorporated is a global offshore drilling contractor that provides drilling services to the petroleum industry. With a fleet of technologically advanced offshore drilling rigs, Ensco offers drilling solutions, well services, and engineering services to major oil companies worldwide. The company is committed to safety, operational excellence, and delivering value to its customers.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

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30 Patents

#146 in Wilmington, DE

#185 in Delaware

#10,873 in US

#21,212 in the World

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Wilmington, DE, United States of America

Ensco International Incorporated

Forward Citations = 69

32 inventors:

goldMedal Richard Robert Roper (8 out of 15 patents)

silverMedal Christopher Scott Stewart (7 out of 8 patents)

bronzeMedal Van Van Vu (6 out of 6 patents)

4.  Justin Dow Alcorn (4 out of 4 patents)

5.  Gilles Luca (2 out of 2 patents)

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