Growing community of inventors

Skien, Norway

Sten Egil Johnsen

Average Co-Inventor Count = 3.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 2

Sten Egil Johnsen ↔ Carsten Frithjof Sørlie (1 patent)Sten Egil Johnsen ↔ Leif Kåre Grønstad (1 patent)Sten Egil Johnsen ↔ Leif Kare Gronstad (1 patent)Sten Egil Johnsen ↔ Carsten Frithjof Sorlie (1 patent)Sten Egil JohnsenSten Egil Johnsen (1 patent)Carsten Frithjof SørlieCarsten Frithjof Sørlie (2 patents)Leif Kåre GrønstadLeif Kåre Grønstad (2 patents)Leif Kare GronstadLeif Kare Gronstad (2 patents)Carsten Frithjof SorlieCarsten Frithjof Sorlie (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Statoil Petroleum As (1 from 163 patents)


1 patent:

1. 9593563 - Method and apparatus for generating steam for the recovery of hydrocarbon

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as of
12/15/2025
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