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Stavanger, Norway

Petroleum Technology Company As

USPTO Granted Patents = 30

CIPO Patents = 2

EPO Patents = 21

Trademarks = 1

Forward Citations = 96

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17 inventors (with patents filed for the assignee):

Erling Kleppa (20 out of 22 patents)

Magnar Tveiten (9 out of 11 patents)

Øyvind Stokka (9 out of 10 patents)

4. Kristian Harestad (8 out of 12 patents)

5. Ole Sevheim (7 out of 7 patents)

6. Ståle Pettersen (4 out of 4 patents)

7. Tom Norland (4 out of 4 patents)

8. Trond Kvasnes (2 out of 2 patents)

9. Kristian Korbøl Josefsen (1 out of 1 patent)

10. Michal Gumos (1 out of 1 patent)

11. Lino Guedes (1 out of 1 patent)

12. Andre Bolager (1 out of 1 patent)

13. Helge Skorve (1 out of 1 patent)

14. Stâle Pettersen (1 out of 1 patent)

15. Oliver Guest (1 out of 1 patent)

30 patents: Sort by Forward Citations

1. 12264554 - Valve arrangement (2025-04-01),

2. 12139998 - Downhole control arrangement, valve arrangement, side pocket mandrel, and method for operating a downhole valve arrangement (2024-11-11),

3. 12084943 - Valve device and method (2024-09-10),

4. 12000248 - Gas lift valve (2024-06-04),

5. 11708749 - Downhole device with signal transmitter (2023-07-25),

6. 11454086 - Valve device and method (2022-09-27),

7. 11236592 - Valve system (2022-02-01),

8. 11236571 - Wellhead assembly and method (2022-02-01),

9. 11230893 - Method of manufacturing a side pocket mandrel body (2022-01-25),

10. 11111746 - Wellbore arrangement (2021-09-07),

11. 11002102 - Plug and production tubing for a petroleum well (2021-05-11),

12. 10662723 - Method of manufacturing a side pocket mandrel body (2020-05-26),

13. 10597990 - Gas lift valve (2020-03-24),

14. 10450821 - Wellhead port plug assembly (2019-10-22),

15. 10294763 - Bellows valve and an injection valve (2019-05-21),

Petroleum Technology Company AS is a leading provider of advanced petroleum technology solutions. With a strong focus on innovation and quality, we offer cutting-edge technology and services to the global oil and gas industry. Our expertise covers a wide range of areas, including drilling tools, downhole monitoring systems, production optimization software, and more. Through continuous research and development, we strive to deliver custom solutions that enhance efficiency, increase well productivity, and reduce operational costs. Visit our website to explore our comprehensive range of products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

30 Patents

#9 in Stavanger

#58 in Norway

#21,193 in the World

Stavanger, Norway

Petroleum Technology Company As

Forward Citations = 96

17 inventors:

Erling Kleppa (20 out of 22 patents)

Magnar Tveiten (9 out of 11 patents)

Øyvind Stokka (9 out of 10 patents)

4. Kristian Harestad (8 out of 12 patents)

5. Ole Sevheim (7 out of 7 patents)

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