For the Inventor, By the Inventor

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Tyssedal, Norway

Wellguard As

USPTO Granted Patents = 3

EPO Patents = 1

Trademarks = 2

Forward Citations = 7

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9 inventors (with patents filed for the assignee):

Eirik Espe (3 out of 3 patents)

Fridtjof Nyhavn (2 out of 18 patents)

Rune Flo (2 out of 2 patents)

4. Tonni Franke Johansen (1 out of 22 patents)

5. Kjell Ragnar Vågenes (1 out of 1 patent)

6. Frederik Vilhelmsen (1 out of 1 patent)

7. Tore Eide (1 out of 2 patents)

8. Jafar Abdollah (1 out of 1 patent)

9. Inge Manfred Carlsen (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 11346204 - Tool, system and a method for determining barrier and material quality behind multiple tubulars in a hydrocarbon wellbore (2022-05-31),

2. 10655456 - Apparatus for monitoring at least a portion of a wellbore (2020-05-19),

3. 10612342 - Plugging tool, and method of plugging a well (2020-04-07),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#1 in Tyssedal

#503 in Norway

Tyssedal, Norway

Wellguard As

Forward Citations = 7

9 inventors:

Eirik Espe (3 out of 3 patents)

Fridtjof Nyhavn (2 out of 18 patents)

Rune Flo (2 out of 2 patents)

4. Tonni Franke Johansen (1 out of 22 patents)

5. Kjell Ragnar Vågenes (1 out of 1 patent)

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